Plants of the
Credit River Watershed
2002
PLANTS
Plants of the Credit River Watershed
A vascular plant flora has been compiled for the Region of Peel and the
Credit River watershed, based largely on an updating of the Peel
County flora published by Jocelyn Webber in 1984. Published floras for
jurisdictions adjacent to Peel, including the Regional Municipality of
Halton (Crins, 1986) and Wellington County (Stroud, 1941) were
examined for relevant records within the Credit River watershed and a
large number of naturalists and botanical specialists were consulted to
identify additional data and records of vascular plants in the areas
under consideration.
A total of 1205 vascular plant species were identified as growing
outside cultivation in the jurisdiction of the Credit Valley Conservation
(CVC). In these local floras, 780 are native species in the CVC within
the Credit River watershed, two vascular plants have been designated
species of special concern by the Committee on the Status of
Endangered Wildlife in Canada, ginseng (Panax quinquefolius) and a
pondweed (Potamogeton hillii). Fifteen (15) species within the Credit
River watershed are considered provincially rare by the Ministry of
Natural Resources. A relatively large proportion of the native species,
in total 335 species, are considered rare in the Greater Toronto Area
while 402 are rare within the watershed.
Key to Cover
The following tables summarize the
vascular plant flora in the Credit
River watershed and Peel Region
and their status.
1
2
4
3
5
7
1.
2.
3.
4.
5.
9
8
marsh marigold
white trilliums
pitcher plant
American elm
eastern white
cedar
6
6.
7.
8.
10
field thistle
fiddleheads
coniferous
swamp
9. white water lily
10. highbush
cranberry
KEY TO TABLES
S-Rank
The following definitions have been provided to help better understand the
information contained in the tables of vascular plants for the watershed.
Rarity Codes
S-Rank - are provincial ranks (or Sub national ranks) that are used by the Natural Heritage
Information Centre to set protection priorities for rare species and natural communities.
The ranks are assigned based upon recent records.
Codes
G-Rank
S1
A network of natural heritage programs, scientific experts and The Nature Conservancy
develops G-Rank or global ranks. The ranking is based on the range-wide status of a
species, subspecies or variety.
S2
S3
Codes
G1
G2
G3
G4
G5
GU
G?
G
Q
T
Extremely Rare; usually 5 or fewer occurrences in the overall range or very few
remaining individuals; or because of some factor(s) making it especially
vulnerable to extinction.
Very Rare; usually between 5 and 20 occurrences in the overall range or with
many individuals in fewer occurrences; or because of some factor(s) making it
vulnerable to extinction.
Rare to uncommon; usually between 20 and 100 occurrences; may have fewer
occurrences, but with a large number of individuals in some populations; may be
susceptible to large-scale disturbances.
Common; usually more than 100 occurrences; usually not susceptible to
immediate threats.
Very common; demonstrable secure under present conditions.
Status uncertain; often because of low search efforts or cryptic nature of the
species; more data needed.
Unranked; or, if following a ranking, rank tentatively assigned (e.g. G3?)
A “G” (or “T”) followed by a blank space means that the NHIC has not yet
obtained the Global Rank from the Nature Conservancy.
Denotes that the taxonomic status of the species, subspecies, or variety is
questionable.
Denotes that the rank applies to a subspecies or variety.
S4
S5
SE
SH
C
Extremely Rare; usually 5 or fewer occurrences in the province or very few
remaining individuals; often especially vulnerable to extirpation.
Very Rare; usually between 5 and 20 occurrences in the province or with many
individuals in fewer occurrences; often susceptible to extirpation.
Rare to Uncommon; usually between 20 and 100 occurrences in the province;
may have fewer occurrences, but with a large number of individuals in some
populations; may be susceptible to large-scale disturbances.
Common; usually more than 100 occurrences; usually not susceptible to
immediate threats.
Very Common; demonstrably secure under present conditions.
Exotic. Not believed to be a part of Ontario’s natural flora.
Historical; of only historical occurrence in the province (no occurrences
verified in the past 20 years), but with expectation that it may still be extant.
Captive/Cultivated; existing in the province only in a cultivated state;
introduced population may not yet be fully established.
The provincial ranking, the “S-Rank,” is an estimate of the abundance for each plant and
should not be confused with the rarity designation, although there is a relationship between
the two. As presently treated, any plant with an S-Rank of S1, S2 or S3 is designated
provincially rare.
Non-Native Status
COSEWIC
Status assigned by the Committee on the Status of Endangered Wildlife in Canada,
following the 1996 COSEWIC List.
Yes
No
Species is non-native; it has been introduced to the Credit River watershed
Species is native to the Credit River watershed
Codes
END
THR
VUL
NAR
Endangered - any indigenous species of fauna or flora threatened with imminent
extinction or extirpation throughout all or a significant portion of its Canadian
range.
Threatened -any indigenous species of fauna or flora that is likely to become
endangered if the factors affecting its vulnerability do not become reversed.
Vulnerable - any indigenous species of fauna or flora that is particularly at risk
because of low or declining numbers, occurrence at the fringe of its range or in
restricted areas or for some other reason, but is not a threatened species.
Not At Risk - the status has been reviewed and the species is not threatened.
Peel Region
Yes
No
CVC
Yes
No
Prov Status
Rare
Any plant species with an S-Rank of S1, S2 or S3.
GTA Status
Rare
A species that occurs at fewer than 40 locations in the Greater Toronto Area
(location is defined by an exclusion zone with a 1km radius around each known
location for a given species.)
Peel Status
Rare
A species that occurs at fewer than 11 locations Peel.
Credit Watershed Status
Rare
A species that occurs at fewer than 11 locations in the watershed or fewer than
6 locations in the Region of Halton.
Species is found within Peel Region
Species is not found within the Peel Region
Species is found within the Credit River watershed boundary (i.e. CVC
jurisdiction.)
Species is not found within the Credit River watershed boundary (i.e. CVC
jurisdiction.)
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
CV
C
rare
Pe
el
Re
gio
n
rare
No
n-N
a
Sta tive
tus
CV
C/P
ee
lS
tat
us
S5
S5
S5
S5
S5
S5
S5
S5
S5
S5
SE5
S5
S5
SE5
S5
S5
S5
S5
S4S5
SE5
S4S5
S5
S5
S2
S4
S5
S5
S5
S4S5
S4S5
S5
S4S5
S5
S5
S4?
S4S5
S5
S4
S5
S4
S5
S5
S4S5
S4S5
Pro
vS
tat
us
G5
G5
G5
G5
G5
G5
G5
G5
G5
G5
G?
G5
G5
G?
G5
G5
G5
G5
G?
G5
G5
G5
G5
G3
G5
G5
G5
G5
G5
G5
G5
G5
G5
G5T
G5
G5T5
G5
G5
G5
G5
G5
G5
G5
G5
CO
SE
WI
C
Subspecies/
Variety
GT
AS
tat
us
aquatic forbs
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
No
No
No
No
No
No
No
No
No
No
Yes
No
No
Yes
No
No
No
No
No
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
No
Yes
Yes
No
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Notes
A non-woody, broad-leaved plant living or growing in water.
water-shield
water arum
marsh water-starwort
common coontail
Canada waterweed
water star-grass
mare's-tail
common duckweed
star duckweed
northern water-milfoil
Eurasian water-milfoil
whorled water-milfoil
slender naiad
small-leaved water cress
yellow water-lily
white water-lily
water smartweed
large-leaved pondweed
narrow-leaved pondweed
curly-leaved pondweed
ribbonleaf pondweed
leafy pondweed
variable-leaved pondweed
Hill's pondweed
Illinois pondweed
floating pondweed
knotty pondweed
sago pondweed
white-stemmed pondweed
small pondweed
Richardson's pondweed
spiral pondweed
flat-stemmed pondweed
white water crowfoot
arrowhead
grass-leaved arrowhead
broad-leaved arrowhead
sessile-fruited arrowhead
greater duckweed
flat-leaved bladderwort
small bladderwort
common bladderwort
watermeal
common watermeal
Credit Valley Conservation
Brasenia schreberi
Calla palustris
Callitriche palustris
Ceratophyllum demersum
Elodea canadensis
Heteranthera dubia
Hippuris vulgaris
Lemna minor
Lemna trisulca
Myriophyllum sibiricum
Myriophyllum spicatum
Myriophyllum verticillatum
Najas flexilis
Nasturtium microphyllum
Nuphar variegatum
Nymphaea odorata
Polygonum amphibium
Potamogeton amplifolius
Potamogeton berchtoldii
Potamogeton crispus
Potamogeton epihydrus
Potamogeton foliosus
Potamogeton gramineus
Potamogeton hillii
Potamogeton illinoensis
Potamogeton natans
Potamogeton nodosus
Potamogeton pectinatus
Potamogeton praelongus
Potamogeton pusillus
Potamogeton richardsonii
Potamogeton spirillus
Potamogeton zosteriformis
Ranunculus aquatilis
Sagittaria cuneata
Sagittaria graminea
Sagittaria latifolia
Sagittaria rigida
Spirodela polyrhiza
Utricularia intermedia
Utricularia minor
Utricularia vulgaris
Wolffia arrhiza
Wolffia borealis
var. pusillus
var. diffusus
var. graminea
rare
rare
vulnerable
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 1
rare
rare
rare
Synonym: Zosterella dubia
Synonym: Myriophyllum exalbescens
Synonym: Nymphaea tuberosa
Synonyms: Polygonum coccineum, Polygonum natans
Synonym: Potamogeton pusillus var. tenuissimus
Historic record - 1907
Historic record - 1895
Historic record - 1895
Synonym: Ranunculus longirostris
Synonym: Wolffia columbiana
Synonym: Wolffia punctata
Pe
el
Re
gio
n
CV
C
S5
S4
S4
S3
SU
S4
S5
S5
S3
S4S5
S5
S4?
S5
S4S5
S5
S5
S5
S4
S4
S5
S4
S5
S4
S4
S5
S5
S2
S1
S2?
S5
SE1
S5
S5
S4S5
S5
S5
S5
S4
S5
S5
S5
S5
S4S5
No
n-N
a
Sta tive
tus
G5
G5
G5
G5T3
G4G5
G4
G5T5
G5
G5T4
G5
G5
G5
G5
G5
G5
G4G5
G5
G5
G5
G5
G5
G5
G5
G4
G5
G5
HYB
HYB
HYB
G5
G5
G5
G5
G5
G5
G5
G5T5
G5
G5
G5
G5
G5
G5
Pro
vS
tat
us
S4
CO
SE
WI
C
G5
CV
C/P
ee
lS
tat
us
ferns
Zannichellia palustris
rare
No
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
GT
AS
tat
us
horned pondweed
Subspecies/
Variety
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Notes
A plant with leaf-like fronds that reproduces using spores.
maidenhair fern
ebony spleenwort
walking fern
hart's-tongue fern
maidenhair spleenwort
green spleenwort
lady fern
cut-leaved grape fern
narrow-leaved moonwort
daisy-leaf grape fern
leathery grape fern
least moonwort
rattlesnake fern
slender cliff-brake
bulblet fern
Mackay's fragile fern
hay-scented fern
silvery glade fern
glade fern
spinulose woodfern
Clinton's woodfern
crested woodfern
male fern
Goldie's fern
evergreen woodfern
marginal woodfern
hybrid woodfern
triploid woodfern
hybrid woodfern
oak fern
water-clover
ostrich fern
sensitive fern
northern adder's-tongue
cinnamon fern
interrupted fern
royal fern
smooth cliff-brake
northern beech fern
rock polypody
Christmas fern
Bracken
New York fern
Credit Valley Conservation
Adiantum pedatum
Asplenium platyneuron
Asplenium rhizophyllum
Asplenium scolopendrium
Asplenium trichomanes
Asplenium trichomanes-ramosum
Athyrium filix-femina
Botrychium dissectum
Botrychium lanceolatum
Botrychium matricariifolium
Botrychium multifidum
Botrychium simplex
Botrychium virginianum
Cryptogramma stelleri
Cystopteris bulbifera
Cystopteris tenuis
Dennstaedtia punctilobula
Deparia acrostichoides
Diplazium pycnocarpon
Dryopteris carthusiana
Dryopteris clintoniana
Dryopteris cristata
Dryopteris filix-mas
Dryopteris goldiana
Dryopteris intermedia
Dryopteris marginalis
Dryopteris x boottii
Dryopteris x triploidea
Dryopteris x uliginosa
Gymnocarpium dryopteris
Marsilea quadrifolia
Matteuccia struthiopteris
Onoclea sensibilis
Ophioglossum pusillum
Osmunda cinnamomea
Osmunda claytoniana
Osmunda regalis
Pellaea glabella
Phegopteris connectilis
Polypodium virginianum
Polystichum acrostichoides
Pteridium aquilinum
Thelypteris noveboracensis
var. americanum
var. angustum
ssp. angustisegmentum
var. spectabilis
ssp. glabella
var. latiusculum
rare
rare
rare
rare
rare
rare
Page 2
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Alternative name author - (L.) Oakes ex D.Eaton
Synonym: Camptosorus rhizophyllus
Synonym: Phyllitis scolopendrium
Synonym: Asplenium viride
Synonym: Athyrium angustum
Synonyms: Botrychium dissectum var. obliquum,
Historic record - 1924
Synonym: Cystopteris fragilis var. mackayi
Synonym: Athyrium thelypterioides
Synonym: Athyrium pycnocarpon
Synonym: Drypoteris spinulosa
= Dryopteris cristata x Dryopteris intermedia
= Dryopteris carthusiana x Dryopteris intermedia
= Dryopteris carthusiana x Dryopteris cristata
Synonym: Ophioglossum vulgatum of ON reports
Synonym: Thelypteris phegopteris
Synonym: Polypodium vulgare var. virginianum
rare
CV
C
rare
Pe
el
Re
gio
n
CV
C/P
ee
lS
tat
us
Pro
vS
tat
us
S5
S4
CO
SE
WI
C
G5
G5
No
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Notes
A plant that reproduces using spores that do not have fronds, including clubmosses and horsetails.
crowfoot clubmoss
Diphasiastrum digitatum
field horsetail
water horsetail
common scouring-rush
smooth scouring-rush
marsh horsetail
meadow horsetail
dwarf scouring-rush
woodland horsetail
variegated scouring-rush
shining clubmoss
stiff clubmoss
running clubmoss
round-branched clubmoss
ground-pine
Equisetum arvense
Equisetum fluviatile
Equisetum hyemale
Equisetum laevigatum
Equisetum palustre
Equisetum pratense
Equisetum scirpoides
Equisetum sylvaticum
Equisetum variegatum
Huperzia lucidula
Lycopodium annotinum
Lycopodium clavatum
Lycopodium dendroideum
Lycopodium obscurum
meadow spikemoss
Selaginella eclipes
forbs
var. pubescens
No
n-N
a
Sta tive
tus
fern allies
Thelypteris palustris
Woodwardia virginica
Subspecies/
Variety
GT
AS
tat
us
marsh fern
Virginia chain-fern
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
ssp. affine
ssp. variegatum
G5
S5
G5
G5
G5T5
G5
G5
G5
G5
G5
G5
G5
G5
G5
G5
G5
S5
S5
S5
S4
S5
S5
S5
S5
S5
S5
S5
S5
S5
S4
G4
S4
G?
G5
G5T?
G5
G5
G5
HYB
G?
G5
G?
G?
GU
SE5
S5
SE?
S4
S5
S5
S1
SE5
S5
SE3
SE2
SE4
rare
rare
rare
rare
rare
rare
No
No
No
No
No
No
No
No
No
No
No
No
No
No
rare
rare
No
Yes
Yes
Yes
No
Yes
No
No
No
No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Synonyms: Lycopodium digitatum, Lycopodium
flabelliforme
Synonym: Lycopodium lucidulum
Synonyms: Selaginella apus, Selaginella apoda / Historic
record - 1945
A non-woody, broad-leaved plant or herb.
velvet-leaf
three-seeded mercury
common yarrow
sweet flag
doll's-eyes
baneberry
hybrid baneberry
goutweed
common agrimony
corn-cockle
creeping bugleweed
hollyhock
Abutilon theophrasti
Acalypha virginica
Achillea millefolium
Acorus americanus
Actaea pachypoda
Actaea rubra
Actaea x ludovici
Aegopodium podagraria
Agrimonia gryposepala
Agrostemma githago
Ajuga reptans
Alcea rosea
common water-plantain
Alisma plantago-aquatica
G5
S5
No
Yes
Yes
garlic mustard
chives
wild leek
yellow alyssum
tumble pigweed
prostrate pigweed
smooth pigweed
green pigweed
Alliaria petiolata
Allium schoenoprasum
Allium tricoccum
Alyssum alyssoides
Amaranthus albus
Amaranthus blitoides
Amaranthus hybridus
Amaranthus powellii
G5
G5
G5
G?
G5
G?
G?
G5
SE5
SE2
S5
SE5
SE5
SE4?
SE5?
SE5
No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Credit Valley Conservation
var. rhomboidea
ssp. millefolium
rare
Page 3
rare
Synonym: Acalypha rhomboidea
Synonym: Acorus calamus of PCF
Synonym: Actaea alba
= Actaea pachypoda x Actaea rubra
Historic record - 1910
Synonym: Althaea rosea
Synonyms: Alisma parviflorum, Alisma subcordatum,
Alisma triviale
Synonym: Alliaria officinalis
Synonym: Amaranthus graecizans of ON reports
Historic record - 1889
No
n-N
a
Sta tive
tus
Pe
el
Re
gio
n
CV
C
Yes
Yes
SE1
SE3?
Yes
Yes
Yes
Yes
No
No
G?
Artemisia abrotanum
Artemisia absinthium
G?
G?
southern wormwood
absinth
ssp. fallax
ssp. androsaemifolium
var. cannabinum
ssp. caucasica
ssp. pycnocarpa
ssp. racemosa
ssp. minus
ssp. triphyllum
GT
AS
tat
us
Yes
Armoracia rusticana
horseradish
var. multifida
var. quinquefolia
var. virginiana
Pro
vS
tat
us
SE4
SE5
S5
S5
S5
SE4
S5
SE3
S4?
S5
S5
S5
S4
S5
S5
S5
S5
S5
S5
SE5
SE5
SE1
SE4?
S5
S5
S5
S5
SE3
SE5
SE2
S4
S5
S5
S5
S5
S5
S5
SE5
SE5
SE5
S4
S5
Amaranthus retroflexus
Ambrosia artemisiifolia
Ambrosia trifida
Amphicarpaea bracteata
Anagallis arvensis
Anaphalis margaritacea
Anchusa arvensis
Androsace septentrionalis
Anemone acutiloba
Anemone americana
Anemone canadensis
Anemone cylindrica
Anemone multifida
Anemone quinquefolia
Anemone virginiana
Angelica atropurpurea
Antennaria neglecta
Antennaria parlinii
Anthemis arvensis
Anthemis cotula
Anthemis tinctoria
Anthriscus sylvestris
Apios americana
Apocynum androsaemifolium
Apocynum cannabinum
Aquilegia canadensis
Aquilegia vulgaris
Arabidopsis thaliana
Arabis alpina
Arabis canadensis
Arabis glabra
Arabis hirsuta
Arabis laevigata
Aralia nudicaulis
Aralia racemosa
Arceuthobium pusillum
Arctium lappa
Arctium minus
Arenaria serpyllifolia
Arethusa bulbosa
Arisaema triphyllum
Subspecies/
Variety
CO
SE
WI
C
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
S-R
an
k
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
G?
G5
G5
G5
G?
G5
G?
G5
G5
G?
G5
G5
G5
G5
G5
G5
G5
G4G5
G?
G5
G?
G?
G5
G5
G5
G5
G?
G?
G5T?
G5
G5
G5
G5
G5
G5
G5
G?
G?
G?
G5
G5
Scientific Name
redroot pigweed
common ragweed
giant ragweed
hog-peanut
scarlet pimpernel
pearly everlasting
small bugloss
fairy-bells
sharp-lobed hepatica
round-lobed hepatica
Canada anemone
thimbleweed
cut-leaved anemone
wood anemone
Virginia thimbleweed
purple-stemmed angelica
field pussytoes
plantain-leaved pussytoes
corn chamomille
stinking mayweed
yellow chamomille
wild chervil
ground-nut
spreading dogbane
indian-hemp
wild columbine
European columbine
mouse-ear cress
alpine rockcress
sicklepod
tower mustard
hairy rockcress
smooth rockcress
wild sarsaparilla
spikenard
dwarf mistletoe
great burdock
common burdock
thyme-leaved sandwort
dragon's-mouth
jack-in-the-pulpit
Credit Valley Conservation
Yes
No
No
No
Yes
No
Yes
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
Yes
No
No
No
No
No
No
No
Yes
Yes
Yes
No
No
GRa
nk
Common Name
CV
C/P
ee
lS
tat
us
Plants of the Credit River Watershed
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 4
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Notes
Synonym: Lycopsis arvensis / Historic record - 1912
Synonym: Hepatica acutiloba
Synonym: Hepatica americana
Synonym: Anemone riparia
Synonym: Antennaria plantaginifolia
Synonym: Apocynum sibiricum
Synonym: Arabis caucasica
Historic record - 1938
Synonym: Arabis pycnocarpa
Historic record - 1907
Historic record - 1907
Synonym: Arisaema atrorubens
Synonym: Armoracia lapathifolia / Historic record - 1927
Historic record - 1891
Historic record - 1906
No
n-N
a
Sta tive
tus
Pe
el
Re
gio
n
CV
C
Yes
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
No
Yes
Yes
SE5
Yes
Yes
No
SE1
SE5
SE5
SE5
S5
S4
S5
S5
S5
Yes
Yes
Yes
Yes
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
SE?
Astragalus canadensis
Astragalus neglectus
Atriplex patula
G5
G4
G5
S4
S3
S5
spear-leaved spearscale
Atriplex prostrata
G5
S5
yellow false foxglove
Aureolaria flava
G5
S3
costmary
Balsamita major
G5
blue wild indigo
common winter-cress
English daisy
hoary alyssum
nodding beggar-ticks
small beggar-ticks
devil's beggar-ticks
three-parted beggar-ticks
tall beggar-ticks
Baptisia australis
Barbarea vulgaris
Bellis perennis
Berteroa incana
Bidens cernua
Bidens discoidea
Bidens frondosa
Bidens tripartita
Bidens vulgata
G5
G?
G?
G?
G5
G5
G5
G5
G5
Artemisia annua
Artemisia biennis
Artemisia campestris
Artemisia ludoviciana
Artemisia pontica
Artemisia vulgaris
Aruncus dioicus
Asarum canadense
Asclepias exaltata
Asclepias incarnata
Asclepias syriaca
Asclepias tuberosa
Asparagus officinalis
Aster borealis
Aster brachyactis
Aster cordifolius
Aster ericoides
Aster lanceolatus
Aster lateriflorus
Aster macrophyllus
Aster novae-angliae
Aster oolentangiensis
Aster pilosus
Aster puniceus
Aster umbellatus
Aster urophyllus
amethyst aster
Aster x amethystinus
Canada milkvetch
Cooper's milkvetch
spearscale
Credit Valley Conservation
ssp. caudata
ssp. incarnata
ssp. ericoides
ssp. lanceolatus
var. lateriflorus
var. pilosus
var. puniceus
var. umbellatus
rare
rare
GT
AS
tat
us
Yes
HYB
sweet wormwood
biennial wormwood
tall wormwood
western mugwort
Roman wormweed
common mugwort
goat's-beard
wild ginger
poke milkweed
swamp milkweed
common milkweed
butterfly weed
asparagus
bog aster
rayless aster
heart-leaved aster
heath aster
panicled aster
calico aster
large-leaved aster
New England aster
azure aster
white heath aster
purple-stemmed aster
flat-topped aster
arrow-leaved aster
Subspecies/
Variety
Pro
vS
tat
us
No
SE1
SE5
S4S5
S4?
SE2?
SE5
SE1
S5
S4
S5
S5
S4
SE5
S5
S3?
S5
S5
S5
S5
S5
S5
S4
S5
S5
S5
S4
Scientific Name
CO
SE
WI
C
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
S-R
an
k
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
GRa
nk
Yes
Yes
No
Yes
Yes
Yes
Yes
No
No
No
No
No
Yes
No
Yes
No
No
No
No
No
No
No
No
No
No
No
G5
G5
G5
G5
G?
G?
G5
G5
G5
G5
G5
G5
G5?
G5
G5
G5
G5
G5
G5
G5
G5
G5
G5
G5
G5
G4
Common Name
CV
C/P
ee
lS
tat
us
Plants of the Credit River Watershed
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 5
Notes
Historic record - 1911
Synonym: Artemisia caudata
Historic record - 1932
Synonym: Virgulus ericoides
Synonym: Aster simplex
Synonym: Virgulus novae-angliae
Synonym: Aster azureus
Synonym: Aster sagittifolius
= Aster ericoides x Aster novae-angliae / Synonym:
Virgulus x amethystinus
Synonym: Astragalus cooperi
Synonyms: Atriplex hastata, Atriplex patula var. hastata
Synonym: Chrysanthemum balsamita / Historic record 1936
Synonym: Bidens connata
Credit Valley Conservation
ssp. pratensis
ssp. nutans
ssp. arvense
CV
C/P
ee
lS
tat
us
GT
AS
tat
us
Pro
vS
tat
us
CO
SE
WI
C
S5
SE5
SE5
SE5
SE5
S4
NR
S4S5
S5
SU
S4S5
SE5
S5
SE5
S5
SE1
S1
SE5
S4
S5
S5
S4
SE3
SE1
S5
SE1
S2S3
SE5
SE?
SE5
S5
SE1?
S5
S5
SE1
SE5
SE?
SE1
SE3
SE4
SE5
SE2
SE5
SE2
SE5
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 6
rare
CV
C
ssp. americanum
ssp. spithamaea
G5
G?
G?
G?
G5
G5
NR
G5
G5
G4G5
G4G5
G?
G5
G?
G5
G?
G5
G?
G5
G5
G5
G5
G?
G?
G5
G5T?
HYB
G?
G?
G?
G5
G?
G?
G?
G?
G?
G?
G?
G?
G5T?
G?
G?
G?
G?
G?
Pe
el
Re
gio
n
Boehmeria cylindrica
Brassica juncea
Brassica nigra
Brassica rapa
Butomus umbellatus
Cakile edentula
Calamintha nepeta
Calopogon tuberosus
Caltha palustris
Calystegia sepium
Calystegia spithamaea
Camelina microcarpa
Campanula aparinoides
Campanula rapunculoides
Campanula rotundifolia
Campanula trachelium
Cannabis sativa
Capsella bursa-pastoris
Cardamine bulbosa
Cardamine concatenata
Cardamine diphylla
Cardamine douglassii
Cardamine hirsuta
Cardamine impatiens
Cardamine pensylvanica
Cardamine pratensis
Cardamine x maxima
Carduus acanthoides
Carduus crispus
Carduus nutans
Carex albursina
Carum carvi
Caulophyllum giganteum
Caulophyllum thalictroides
Centaurea cyanus
Centaurea maculosa
Centaurea nigra
Centaurea scabiosa
Centaurium pulchellum
Cerastium arvense
Cerastium fontanum
Cerastium pumilum
Cerastium semidecandrum
Cerastium tomentosum
Chaenorrhinum minus
Subspecies/
Variety
No
n-N
a
Sta tive
tus
false nettle
indian mustard
black mustard
wild turnip
flowering-rush
sea rocket
catnip-thyme
grass pink
marsh-marigold
hedge bindweed
low bindweed
small-seeded false flax
marsh bellflower
creeping bellflower
harebell
nettle-leaved bellflower
hemp
shepherd's-purse
bulbous cress
cut-leaved toothwort
common toothwort
purple cress
hairy cardamine
cardamine
Pensylvania cardamine
cuckoo-flower
hybrid toothwort
plumeless thistle
welted thistle
nodding thistle
sedge
common caraway
giant blue cohosh
blue cohosh
cornflower
spotted knapweed
black knapweed
scabious knapweed
branched centaury
field chickweed
mouse-eared chickweed
dwarf chickweed
small chickweed
snow-in-summer
dwarf snapdragon
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
No
Yes
Yes
Yes
Yes
No
Yes
No
No
No
No
Yes
No
Yes
No
Yes
Yes
Yes
No
No
No
No
Yes
Yes
No
Yes
No
Yes
Yes
Yes
No
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Notes
Historic record - 1940
Synonym: Convolvulus sepium
Synonym: Convolvulus spithamaeus
Synonym: Campanula uliginosa
Historic record - 1927
Synonym: Dentaria laciniata
Synonym: Dentaria diphylla
Synonym: Dentaria maxima
Synonym: Caulophyllum thalictroides var. giganteum
Historic record - 1907
Synonym: Cerastium vulgatum
Credit Valley Conservation
ssp. glaucum
ssp. canadensis
ssp. aurea
rare
rare
rare
CV
C/P
ee
lS
tat
us
GT
AS
tat
us
Pro
vS
tat
us
CO
SE
WI
C
SE5
SE5
S4S5
S5
SE5
S5
SE5
SE1
SE4
S5
SE5
SE1
S5
SE5
S5
SE5
S5
S5
S5
S5
SE5
S5
SE5
S5
S5
S5
S5
S4
S5
SE3
SE2?
S4?
SE2
SE1
SE5
SE5
S5
S5
S5
S4
S5
SE3?
SE5
S5
SE5
rare
rare
rare
rare
Page 7
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
CV
C
var. album
G5
G5?
G?
G5
G?
G5
G5
G?
G?
G5
G5T?
G?
G5
G?
G5
G?
G5
G5
G5
G5
G?
G5
G5
G5
G5
G?
G5
G5
G5
G5
G5
G5
G?
G?
G5
G?
G5
G5
G5
G5
G5
G5
G?
G5
G?
Pe
el
Re
gio
n
Chamaesyce glyptosperma
Chamaesyce maculata
Chamaesyce nutans
Chamaesyce vermiculata
Chelidonium majus
Chelone glabra
Chenopodium album
Chenopodium bonus-henricus
Chenopodium botrys
Chenopodium capitatum
Chenopodium glaucum
Chenopodium polyspermum
Chenopodium simplex
Chrysanthemum leucanthemum
Chrysosplenium americanum
Cichorium intybus
Cicuta bulbifera
Cicuta maculata
Circaea alpina
Circaea lutetiana
Cirsium arvense
Cirsium muticum
Cirsium vulgare
Claytonia caroliniana
Claytonia virginica
Clinopodium vulgare
Clintonia borealis
Collinsonia canadensis
Comandra umbellata
Commelina communis
Conium maculatum
Conopholis americana
Conringia orientalis
Consolida ajacis
Convallaria majalis
Convolvulus arvensis
Conyza canadensis
Coptis trifolia
Corallorhiza maculata
Corallorhiza striata
Corallorhiza trifida
Coreopsis grandiflora
Coronilla varia
Corydalis aurea
Crepis tectorum
Subspecies/
Variety
No
n-N
a
Sta tive
tus
ridge-seeded spurge
spotted spurge
nodding spurge
hairy spurge
celandine
turtlehead
lamb's-quarters
good King Henry
oak goosefoot
strawberry-blite
oak-leaved goosefoot
many-seeded goosefoot
maple-leaved goosefoot
ox-eye daisy
golden saxifrage
chicory
bulblet water-hemlock
spotted water-hemlock
small enchanter's nightshade
enchanter's nightshade
Canada thistle
swamp thistle
bull thistle
Carolina spring beauty
Virginia spring beauty
wild basil
bluebead lily
horsebalm
bastard toad-flax
Asiatic day-flower
poison hemlock
squawroot
hare's-ear mustard
rocket larkspur
lily-of-the-valley
field bindweed
horseweed
goldthread
spotted coralroot
striped coralroot
early coralroot
large-flowered tickseed
crown vetch
golden corydalis
narrow-leaved hawk's-beard
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
Yes
Yes
No
No
Yes
No
Yes
Yes
Yes
No
Yes
Yes
No
Yes
No
Yes
No
No
No
No
Yes
No
Yes
No
No
No
No
No
No
Yes
Yes
No
Yes
Yes
Yes
Yes
No
No
No
No
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Notes
Synonym: Euphorbia glyptosperma
Synonym: Euphorbia maculata
Synonym: Euphorbia nutans
Synonym: Euphorbia vermiculata
Historic record - 1900
Historic record - 1907
Synonym: Chenopodium hybridum
Synonym: Leucanthemum vulgare
Synonym: Circaea quadrisulcata
Synonym: Satureja vulgaris
Synonym: Comandra richardsiana
Historic record - 1900
Synonym: Consolida ambigua / Historic record - 1916
Synonym: Erigeron canadensis
Synonym: Coptis groenlandica
Historic record - 1947
Historic record - 1908
Credit Valley Conservation
ssp. sylvestris
ssp. ciliatum
ssp. philadelphicus
CV
C/P
ee
lS
tat
us
GT
AS
tat
us
Pro
vS
tat
us
CO
SE
WI
C
S5
SEH
S5
S4
SE1
SE5
S4
SE5
S5
S5
S5
S4
S4S5
SE5
SE5
SE5
S4
S4
S4
SE5
SE1
SE2
SE1
S5
S5
SE5
SE5
S5
S5
S5
SE4
SE5
S5
S5
S5
S5
SE5
S5
SE4
SE5
S5
S3
S5
S5
S5
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 8
rare
rare
rare
rare
rare
rare
CV
C
var. pubescens
var. parviflorum
G5
G?
G5
G5
G?
G?
G4Q
G?
G5
G5T?
G5T?
G4
G5
GU
G?
G?
G5
G5
G5
G?
G?
G?
G?
G5
G5
G?
G?
G5
G5
G5
G?
G?
G5
G5
G5
G5
G?
G5
G?
G?
G5
G5
G5
G5T5
G5
Pe
el
Re
gio
n
Cryptotaenia canadensis
Cuscuta epithymum
Cuscuta gronovii
Cycloloma atriplicifolium
Cymbalaria muralis
Cynanchum rossicum
Cynoglossum boreale
Cynoglossum officinale
Cypripedium acaule
Cypripedium calceolus
Cypripedium calceolus
Cypripedium reginae
Dalibarda repens
Datura stramonium
Daucus carota
Descurainia sophia
Desmodium canadense
Desmodium glutinosum
Desmodium nudiflorum
Dianthus armeria
Dianthus barbatus
Dianthus deltoides
Dianthus plumarius
Dicentra canadensis
Dicentra cucullaria
Diplotaxis tenuifolia
Dipsacus fullonum
Drosera intermedia
Drosera rotundifolia
Echinocystis lobata
Echinops sphaerocephalus
Echium vulgare
Epifagus virginiana
Epilobium angustifolium
Epilobium ciliatum
Epilobium coloratum
Epilobium hirsutum
Epilobium leptophyllum
Epilobium parviflorum
Epipactis helleborine
Erechtites hieracifolia
Erigenia bulbosa
Erigeron annuus
Erigeron philadelphicus
Erigeron pulchellus
Subspecies/
Variety
No
n-N
a
Sta tive
tus
honewort
clover dodder
common dodder
winged pigweed
Kenilworth-ivy
swallow-wort
wild comfrey
hound's-tongue
moccasin flower
yellow lady's-slipper
yellow lady's-slipper
showy lady's-slipper
dewdrop
jimsonweed
wild carrot
flixweed
Canadian tick-trefoil
pointed-leaved tick-trefoil
naked-flowered tick-trefoil
Deptford pink
bearded pink
maiden pink
cottage pink
squirrel-corn
Dutchman's-breeches
slender wall-rocket
teasel
spatulate-leaved sundew
round-leaved sundew
wild cucumber
globe thistle
viper's bugloss
beech-drops
fireweed
sticky willowherb
purple-leaved willowherb
hairy willowherb
narrow-leaved willowherb
small-flowered willowherb
helleborine
American fireweed
harbinger-of-spring
daisy fleabane
Philadelphia fleabane
Robin's plantain
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
No
Yes
No
No
Yes
Yes
No
Yes
No
No
No
No
No
Yes
Yes
Yes
No
No
No
Yes
Yes
Yes
Yes
No
No
Yes
Yes
No
No
No
Yes
Yes
No
No
No
No
Yes
No
Yes
Yes
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Notes
Historic record - 1903
Synonym: Vincetoxicum rossicum
Historic record - 1890
Synonym: Dipsacus sylvestris
Historic record - 1907
Synonyms: Epilobium glandulosum, Epilobium watsonii
Credit Valley Conservation
ssp. cheiranthoides
ssp. americanum
ssp. maculata
ssp. ulmaria
ssp. americana
ssp. virginiana
ssp. trifidum
rare
rare
CV
C/P
ee
lS
tat
us
S4S5
S5
S5
S5
S5
SE5
GT
AS
tat
us
G5
G5
G5
G5
G5
G?
Pro
vS
tat
us
S5
SE3
SE4
SE5
SE1
SE5
SE5
S4
S4
S5
S5
S5
S5
SE5
SE4
SE1
SE5
SE3
SE2
SE4
S5
SE3
SE1
SE1
S5
SU
SE3
SE1
S4
SE5
SE?
SE5
S5
S5
S5
S5
S5
S5
CO
SE
WI
C
G5
G4G5
G?
G5
G?
NR
G?
G4G5
G5
G5
G5
G5
G5
G5
G5
G?
G5
G5
G5
G?
G5
G?
G4G5
G5
G5
G5
G5
G?
G5
G?
G?
G?
G5
G5
G5
G5
G5
G5
rare
rare
rare
Page 9
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
CV
C
ssp. cicutarium
Pe
el
Re
gio
n
Erigeron strigosus
Erodium cicutarium
Erophila verna
Erucastrum gallicum
Eryngium planum
Erysimum cheiranthoides
Erysimum hieraciifolium
Erysimum inconspicuum
Erythronium albidum
Erythronium americanum
Eupatorium maculatum
Eupatorium perfoliatum
Eupatorium rugosum
Euphorbia cyparissias
Euphorbia dentata
Euphorbia epithymoides
Euphorbia esula
Euphorbia helioscopia
Euphorbia marginata
Euphorbia platyphyllos
Euthamia graminifolia
Fagopyrum esculentum
Filipendula rubra
Filipendula ulmaria
Fragaria vesca
Fragaria virginiana
Fumaria officinalis
Galanthus nivalis
Galearis spectabilis
Galeopsis tetrahit
Galinsoga parviflora
Galinsoga quadriradiata
Galium aparine
Galium asprellum
Galium boreale
Galium circaezans
Galium labradoricum
Galium lanceolatum
Galium mollugo
Galium obtusum
Galium palustre
Galium tinctorium
Galium trifidum
Galium triflorum
Galium verum
Subspecies/
Variety
No
n-N
a
Sta tive
tus
rough fleabane
stork's-bill
spring whitlow-grass
dog mustard
flat-topped eryngo
wormseed mustard
tall wormseed mustard
small-flowered prairie rocket
white trout-lily
yellow trout-lily
spotted joe-pye weed
boneset
white snakeroot
cypress spurge
toothed spurge
thyme-leaved spurge
leafy spurge
sun spurge
snow-on-the-mountain spurge
broad-leaved spurge
grass-leaved goldenrod
buckwheat
queen-of-the-prairie
queen-of-the-meadow
woodland strawberry
common strawberry
common fumitory
snowdrop
showy orchis
common hemp-nettle
small-flowered galinsoga
hairy galinsoga
cleavers
rough bedstraw
northern bedstraw
wild licorice
Labrador bedstraw
lance-leaved wild licorice
white bedstraw
obtuse bedstraw
marsh bedstraw
lesser bedstraw
small bedstraw
sweet-scented bedstraw
yellow bedstraw
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
No
No
Yes
No
Yes
Yes
Yes
No
No
No
No
No
No
Yes
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Notes
Synonym: Erigeron annuus ssp. strigosus
Synonym: Draba verna
Synonym: Solidago graminifolia
Synonym: Fagopyrum sagittatum
Historic record - 1907
Synonym: Orchis spectabilis / Historic record - 1911
Synonym: Galinsoga ciliata
Synonym: Galium brandegei
Bicknell's frostweed
Canada frostweed
common sunflower
thin-leaved sunflower
rough woodland sunflower
tall wild sunflower
Helianthemum bicknellii
Helianthemum canadense
Helianthus annuus
Helianthus decapetalus
Helianthus divaricatus
Helianthus giganteus
prairie sunflower
Helianthus rigidus
pale-leaved sunflower
Jeruselam artichoke
orange day-lily
yellow day-lily
cow parsnip
dame's rocket
flower-of-an-hour
orange hawkweed
field hawkweed
Canada hawkweed
common hawkweed
Helianthus strumosus
Helianthus tuberosus
Hemerocallis fulva
Hemerocallis lilioasphodelus
Heracleum lanatum
Hesperis matronalis
Hibiscus trionum
Hieracium aurantiacum
Hieracium caespitosum
Hieracium canadense
Hieracium lachenalii
Credit Valley Conservation
ssp. annuus
ssp. subrhomboideus
ssp. caespitosum
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Yes
No
S4?
rare
rare
No
Yes
No
G5
G5
G5
G5
G5
G5
S4
S4
SE?
S5
S5
S5
rare
rare
rare
rare
rare
rare
No
No
Yes
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
G5
S?
Yes
Yes
Yes
G5
G5
G?
G?
G5
G4G5
G?
G?
NR
G5
G?
S5
SE3
SE5
SE3
S5
SE5
SE4
SE3
SE5
SU
SE2?
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
No
Yes
S4
S5
S5
SE5
S5
S5
S4
S5
SE2
SE5
S5
SE5
S5
S4
S5
S4
SE?
SE3
S5
S5
S5
S4
S4
S1
G4G5
Pro
vS
tat
us
rare
No
No
No
Yes
No
No
No
No
Yes
No
No
Yes
No
No
No
No
Yes
Yes
No
No
No
No
No
No
G4?
NR
G5
G?
G5
G5
G5
G5
G5
G?
G5
G5
G5
G5
G5
G5
G5
G?
G5
G5
G5
G5
G5
G5
CO
SE
WI
C
CV
C
Hedyotis longifolia
rare
rare
Pe
el
Re
gio
n
Venus'-pride
ssp. deflexa
rare
rare
No
n-N
a
Sta tive
tus
Gentiana rubricaulis
Gentianopsis crinita
Geranium maculatum
Geranium robertianum
Geum aleppicum
Geum canadense
Geum laciniatum
Geum rivale
Geum urbanum
Glechoma hederacea
Gnaphalium obtusifolium
Gnaphalium uliginosum
Gnaphalium viscosum
Goodyera pubescens
Goodyera repens
Gratiola neglecta
Grindelia squarrosa
Gypsophila paniculata
Hackelia deflexa
Hackelia virginiana
Halenia deflexa
Hedeoma hispidum
Hedeoma pulegioides
Hedyotis caerulea
CV
C/P
ee
lS
tat
us
purple-stemmed gentian
fringed gentian
spotted crane's-bill
herb-robert
yellow avens
white avens
rough avens
water avens
wood avens
ground-ivy
fragrant cudweed
low cudweed
viscid cudweed
downy rattlesnake-plantain
dwarf rattlesnake-plantain
clammy hedge-hyssop
gumweed
baby's-breath
spurred stickseed
Virginia stickseed
spurred gentian
rough pennyroyal
pennyroyal
bluets
Subspecies/
Variety
S-R
an
k
Scientific Name
GRa
nk
Common Name
GT
AS
tat
us
Plants of the Credit River Watershed
rare
rare
rare
rare
rare
rare
Page 10
rare
Notes
Synonyms: Gentiana crinita, Gentianella crinita
Synonym: Geum strictum
Synonym: Gnaphalium macounii
Historic record - 1889
Historic record - 1907
Synonym: Hackelia americana
Synonym: Houstonia caerula / Historic record - 1930
Synonyms: Hedyotis ciliolata, Houstonia canadensis,
Houstonia longifolia
Historic record - 1907
Synonyms: Helianthus laetiflorus of PCF, H. pauciflorus
Synonym: Heracleum maximum
Historic record - 1900
Synonym: Hieracium pratense
Historic record - 1889
Synonym: Hieracium vulgatum
Credit Valley Conservation
ssp. taraxacoides
ssp. cardiaca
rare
CV
C/P
ee
lS
tat
us
GT
AS
tat
us
Pro
vS
tat
us
CO
SE
WI
C
SE5
SE5
SE1
S4
SE?
SE2
S2
S5
S4
S5
S5
SE5
S5
SE2
S5
SE4
S5
SE1
SE5
SE1
SE3
S5
S4
SE1
SE5
S5
S5
SE1
SE5
SE3
S5
S5
SE5
SE4
S5
SE2
SE3
S4
SE1
SE5
SE5
SE5
SE3
SE2
S5
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 11
rare
CV
C
ssp. squarrosa
G?
G?
G?
G5
HYB
G?
G5
G5
G5
G5
G5
G?
G5
G?
G5
G?
G5
G?
G?
G?
G?
G5
G5
G?
G?
G5
G5
G?
G?
G?
G5
NR
G?
G?
G5
G?
G?
G5
NR
G?
G5
G?
G?
G?
G5
Pe
el
Re
gio
n
Hieracium pilosella
Hieracium piloselloides
Hieracium praealtum
Hieracium scabrum
Hieracium x floribundum
Holosteum umbellatum
Hybanthus concolor
Hydrocotyle americana
Hydrophyllum canadense
Hydrophyllum virginianum
Hypericum majus
Hypericum perforatum
Hypericum punctatum
Hyssopus officinalis
Impatiens capensis
Impatiens glandulifera
Impatiens pallida
Inula britannica
Inula helenium
Iris germanica
Iris pseudacorus
Iris versicolor
Jeffersonia diphylla
Kickxia elatine
Kochia scoparia
Lactuca biennis
Lactuca canadensis
Lactuca saligna
Lactuca serriola
Lamium amplexicaule
Laportea canadensis
Lappula squarrosa
Lapsana communis
Lathyrus latifolius
Lathyrus palustris
Lathyrus pratensis
Lathyrus tuberosus
Lechea intermedia
Leontodon taraxacoides
Leonurus cardiaca
Lepidium campestre
Lepidium densiflorum
Lepidium ruderale
Lepidium sativum
Lepidium virginicum
Subspecies/
Variety
No
n-N
a
Sta tive
tus
mouse-ear hawkweed
glaucous king devil
tall king devil
rough hawkweed
king devil hawkweed
jagged chickweed
green violet
marsh pennywort
Canada waterleaf
Virginia waterleaf
large St. John's-wort
common St. John's-wort
spotted St. John's-wort
hyssop
spotted jewelweed
Asian jewelweed
pale jewelweed
English inula
elecampane
fleur-de-lis
yellow flag
blue flag
twinleaf
canker-root
summer cypress
tall blue lettuce
Canada lettuce
willow-leaved lettuce
prickly lettuce
henbit
wood nettle
bluebur
nipplewort
everlasting pea
marsh vetchling
yellow vetchling
tuberous vetchling
pinweed
rough hawkbit
motherwort
field cress
common pepper-grass
narrow-leaved pepper-grass
garden cress
poor-man's pepper-grass
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
Yes
Yes
Yes
No
Yes
Yes
No
No
No
No
No
Yes
No
Yes
No
Yes
No
Yes
Yes
Yes
Yes
No
No
Yes
Yes
No
No
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Notes
Synonym: Hieracium florentinum
Historic record - 1909
Historic record - 1889
= Hieracium caespitosum x Hieracium lactucella
Synonym: Cubelium concolor
Historic record - 1912
Synonym: Impatiens biflora
Synonym: Lactuca scariola
Synonym: Lappula echinata
Native status is uncertain
Historic record - 1910
Historic record - 1892
No
n-N
a
Sta tive
tus
Pe
el
Re
gio
n
CV
C
SE3
SE5
S4
SE3
SE3
S4S5
S5?
SE5
S5
S5
S5
S5
SE5
S5
SE2
S3
SE3
SE2
SE2
S5
SE5
S5
S5
SE5
SE3
S4
S5
S5
SE3
SE5
SE2
S5
S5
S5
S5
S4
SE1
SE5
Yes
Yes
No
Yes
Yes
No
No
Yes
No
No
No
No
Yes
No
Yes
No
Yes
Yes
Yes
No
Yes
No
No
Yes
Yes
No
No
No
Yes
Yes
Yes
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Lilium michiganense
G5
Dalmatian toadflax
butter-and-eggs
false pimpernel
perennial flax
common flax
Loesel's twayblade
heart-leaved twayblade
common gromwell
cardinal flower
indian-tobacco
Kalm's lobelia
great lobelia
bird's-foot trefoil
marsh purslane
honesty
wild lupine
rose campion
matrimony vine
tomato
American water-horehound
European water-horehound
northern water-horehound
fringed loosestrife
moneywort
spotted loosestrife
whorled loosestrife
swamp-candles
tufted loosestrife
garden loosestrife
purple loosestrife
osage-orange
Canada mayflower
false Solomon's-seal
starry false Solomon's-seal
three-leaved false Solomon's-seal
white adder's-mouth
European mallow
musk mallow
Linaria genistifolia
Linaria vulgaris
Lindernia dubia
Linum perenne
Linum usitatissimum
Liparis loeselii
Listera cordata
Lithospermum officinale
Lobelia cardinalis
Lobelia inflata
Lobelia kalmii
Lobelia siphilitica
Lotus corniculatus
Ludwigia palustris
Lunaria annua
Lupinus perennis
Lychnis coronaria
Lycium barbarum
Lycopersicon esculentum
Lycopus americanus
Lycopus europaeus
Lycopus uniflorus
Lysimachia ciliata
Lysimachia nummularia
Lysimachia punctata
Lysimachia quadrifolia
Lysimachia terrestris
Lysimachia thrysiflora
Lysimachia vulgaris
Lythrum salicaria
Maclura pomifera
Maianthemum canadense
Maianthemum racemosum
Maianthemum stellatum
Maianthemum trifolium
Malaxis monophyllos
Malva alcea
Malva moschata
G5T3
G?
G5
G?
G?
G5
G5
G?
G5
G5
G5
G5
G?
G5
G?
G5
G?
G?
G?
G5
G?
G5
G5
G?
G?
G5
G5
G5
G?
G5
GU
G5
G5
G5
G5
G4T4
G?
G?
Credit Valley Conservation
ssp. dalmatica
var. dubia
ssp. perennis
ssp. racemosum
ssp. brachypoda
CV
C/P
ee
lS
tat
us
Yes
Canada lily
Pro
vS
tat
us
Yes
S4
S4
S4
SE1
SE1
CO
SE
WI
C
No
S-R
an
k
S5
GRa
nk
Yes
Yes
Yes
Yes
Yes
G5
G5
G5
G?
G?
Subspecies/
Variety
rare
rare
rare
Yes
Yes
Yes
Yes
Yes
Lespedeza capitata
Lespedeza hirta
Lespedeza intermedia
Levisticum officinale
Lilium lancifolium
Scientific Name
rare
rare
rare
No
No
No
Yes
Yes
round-headed bush-clover
hairy bush-clover
wand-like bush-clover
lovage
tiger lily
Common Name
GT
AS
tat
us
Plants of the Credit River Watershed
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 12
rare
rare
rare
rare
rare
Notes
Historic record - 1890
Synonym: Lilium tigrinum
Synonyms: Lilium canadense ssp. michiganense, Lilium
canadense var. umbelliferum
Synonym: Linaria dalmatica
Synonym: Lycium halimifolium
Synonym: Steironema ciliatum
Synonym: Smilacina racemosa
Synonym: Smilacina stellata
Synonym: Smilacina trifolia
Synonym: Malaxis brachypoda
No
n-N
a
Sta tive
tus
Pe
el
Re
gio
n
CV
C
Malva neglecta
Malva rotundifolia
Malva sylvestris
Malva verticillata
Marrubium vulgare
G?
G?
G?
G?
G?
SE5
SE2
SE1
SE1
SE2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
pineapple-weed
Matricaria matricarioides
G5
SE5
Yes
Yes
Yes
Synonym: Malva rotundifolia (misapplied)
Synonym: Malva pusilla
Historic record - 1897
Historic record - 1897
Historic record - 1889
Synonyms: Chamomilla suaveolens, Matricaria suaveolens
of PCF
scentless chamomille
Matricaria perforata
G?
SE?
Yes
Yes
Yes
false chamomille
Matricaria recutita
G?
SE?
Yes
Yes
Yes
indian cucumber-root
black medick
alfalfa
alfalfa
cow-wheat
white sweet clover
yellow sweet clover
field mint
spearmint
Medeola virginiana
Medicago lupulina
Medicago sativa
Medicago sativa
Melampyrum lineare
Melilotus alba
Melilotus officinalis
Mentha arvensis
Mentha spicata
G5
G?
G?
G?
G5
G?
G?
NR
G?
S5
SE5
SE5
S4S5
SE5
SE5
S5
SE4
No
Yes
Yes
Yes
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
red mint
Mentha x gentilis
HYB
SE2
Yes
Yes
Yes
peppermint
Mentha x piperita
HYB
SE4
Yes
Yes
Yes
buckbean
yellow monkey-flower
hairy four-o'clock
wild four-o'clock
bishop's-cap
naked mitrewort
carpetweed
Oswego-tea
wild bergamot
one-flowered pyrola
pinesap
indian-pipe
grape hyacinth
small forget-me-not
garden forget-me-not
upright forget-me-not
woodland forget-me-not
catnip
yellow ball mustard
apple-of-Peru
long-flowered tobacco
love-in-a-mist
Menyanthes trifoliata
Mimulus ringens
Mirabilis hirsuta
Mirabilis nyctaginea
Mitella diphylla
Mitella nuda
Mollugo verticillata
Monarda didyma
Monarda fistulosa
Moneses uniflora
Monotropa hypopithys
Monotropa uniflora
Muscari botryoides
Myosotis laxa
Myosotis scorpioides
Myosotis stricta
Myosotis sylvatica
Nepeta cataria
Neslia paniculata
Nicandra physalodes
Nicotiana longiflora
Nigella damascena
G5
G5
G5
G5
G5
G5
G?
G5
G5
G5
G5
G5
G?
G5
G5
G?
G5
G?
G?
G?
G?
G?
S5
S5
SE1
S4
S5
S5
SE5
S3
S5
S5
S4
S5
SE3
S5
SE5
SE4
SE4
SE5
SE3
SE1
SE1
SE1
No
No
Yes
Yes
No
No
Yes
No
No
No
No
No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
No
Credit Valley Conservation
Subspecies/
Variety
ssp. falcata
ssp. sativa
GT
AS
tat
us
common mallow
round-leaved mallow
high mallow
whorled mallow
common horehound
Scientific Name
Pro
vS
tat
us
S-R
an
k
Notes
Common Name
CO
SE
WI
C
GRa
nk
CV
C/P
ee
lS
tat
us
Plants of the Credit River Watershed
rare
rare
rare
Page 13
rare
rare
rare
rare
rare
rare
rare
rare
rare
Synonyms: Chamomilla suaveolens of PCF, Matricaria
chamomilla, Matricaria suaveolens
= Mentha arvensis x Mentha spicata / Synonym: Mentha x
cardiaca
= Mentha aquatica x Mentha spicata / Synonym: Mentha x
citrata
Synonym: Hypopithys monotropa
Historic record - 1918
Historic record - 1897
Virginia false dragonhead
Physostegia virginiana
pokeweed
Phytolacca americana
spring clearweed
dwarf clearweed
sand plantain
Pilea fontana
Pilea pumila
Plantago arenaria
Credit Valley Conservation
ssp. montana
ssp. subulata
ssp. virginiana
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
G4?
S2
G2?
G5
G5
G5
G5
G5T?
G?
G5
G5
G4
G5
G?
G?
G5
G5
G4
G?
G5
G5
G4
G5
G5
G5
G5
G5T5
G5
G?
G5
G5
G5
SE3
S4
S5
S5
S5
S5
SE1
S5?
S5
S3
S4
SE1
SE1
S4
S5
S4?
SE5
S5
S4S5
S4
S5
S5
S4
SE2
SE2
S4S5
SE2
S4
SU
SU
G5
S4
rare
G5
S4
rare
G5
G5
G?Q
S4
S5
S4?
rare
rare
endangered
rare
Page 14
CV
C
Ornithogalum umbellatum
Orobanche uniflora
Orthilia secunda
Osmorhiza claytonii
Osmorhiza longistylis
Oxalis acetosella
Oxalis corniculata
Oxalis dillenii
Oxalis stricta
Panax quinquefolius
Panax trifolius
Papaver dubium
Papaver somniferum
Parietaria pensylvanica
Parnassia glauca
Parnassia parviflora
Pastinaca sativa
Pedicularis canadensis
Penstemon digitalis
Penstemon hirsutus
Penthorum sedoides
Petasites frigidus
Phlox divaricata
Phlox paniculata
Phlox subulata
Phryma leptostachya
Physalis alkekengi
Physalis heterophylla
Physalis subglabrata
Physalis virginiana
rare
S5
S1
S5?
S4S5
SE1
SE4
Pe
el
Re
gio
n
summer snowflake
one-flowered cancer-root
one-sided pyrola
sweet cicely
anise-root
wood sorrel
creeping wood sorrel
yellow wood sorrel
European wood sorrel
ginseng
dwarf ginseng
long-headed poppy
common poppy
pellitory
large grass-of-Parnassus
small grass-of-Parnassus
parsnip
Canada lousewort
foxglove beard-tongue
hairy beard-tongue
ditch stonecrop
grape-leaved sweet-colt's-foot
wild blue phlox
garden phlox
moss phlox
lopseed
Chinese lantern
clammy ground-cherry
smooth ground-cherry
Virginia ground-cherry
ssp. hispidissumum
rare
G5
G3G5
G?
G5
G?
G?
No
n-N
a
Sta tive
tus
Onosmodium molle
CV
C/P
ee
lS
tat
us
hairy false gromwell
GT
AS
tat
us
Oenothera biennis
Oenothera clelandii
Oenothera parviflora
Oenothera perennis
Onobrychis viciifolia
Onopordum acanthium
Pro
vS
tat
us
yellow evening-primrose
evening-primrose
yellow evening-primrose
sundrops
sainfoin
Scotch thistle
Subspecies/
Variety
S-R
an
k
Scientific Name
GRa
nk
Common Name
CO
SE
WI
C
Plants of the Credit River Watershed
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
No
Yes
No
Yes
No
No
No
No
No
Yes
No
No
No
No
Yes
Yes
No
No
No
Yes
No
No
No
No
No
No
Yes
Yes
No
Yes
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
rare
Yes
Yes
No
rare
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Notes
Historic record - 1918
Historic record - 1891
Synonym: Onosmodium hispidissimum / Historic record 1890
Synonym: Pyrola secunda
Synonym: Osmorhiza brevistylis
Synonym: Oxalis montana
Synonym: Oxalis stricta (misapplied)
Synonyms: Oxalis europaea, Oxalis fontana
Synonym: Petasites palmatus
Synonym: Physalis lanceolata
Synonym: Physalis virginiana var. subglabrata
Synonym: Physalis longifolia
Although native elsewhere in the province, all Peel
occurrences appear to be introductions.
Historic record - 1918 / Although native elsewhere in the
province, the Peel occurrence is introduced.
Synonym: Plantago psyllium
Potentilla inclinata
rough cinquefoil
marsh cinquefoil
bushy cinquefoil
Potentilla norvegica
Potentilla palustris
Potentilla paradoxa
Credit Valley Conservation
ssp. anserina
ssp. norvegica
G5T?
G5
G5
SEU
S5
S3
CV
C/P
ee
lS
tat
us
SE4
rare
GT
AS
tat
us
HYB
Pro
vS
tat
us
SE5
SE5
SE3
S5
S4S5
S5
S3
S5
S4S5
S5
S5
S5
S4S5
S4
S5
S4
S4
S4
S5
S5
SE5
SE5
S5
SE5
SE4
S4
SE5
S5
S5
SE3
S5
SE5
S5
S4
S4S5
S4
SE5
S5
SE5
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 15
rare
rare
rare
CV
C
hybrid cinquefoil
var. herbiola
G5
G5
G5
G5
G5
G5
G4
G5
G5
G5
G5
G5
G5
G5Q
G5
G5
G4G5
G5
G5
G5
G5?
G?
G5
G?
G?
G5
G5
G5
G5
G?
G5
G?
G5
G5
G5
G5
G?
NR
G?
Pe
el
Re
gio
n
Plantago lanceolata
Plantago major
Plantago media
Plantago rugelii
Platanthera clavellata
Platanthera dilatata
Platanthera flava
Platanthera hyperborea
Platanthera lacera
Platanthera obtusata
Platanthera psycodes
Podophyllum peltatum
Pogonia ophioglossoides
Polanisia dodecandra
Polygala paucifolia
Polygala sanguinea
Polygala senega
Polygala verticillata
Polygonatum pubescens
Polygonum achoreum
Polygonum arenastrum
Polygonum aviculare
Polygonum cilinode
Polygonum convolvulus
Polygonum cuspidatum
Polygonum douglasii
Polygonum hydropiper
Polygonum hydropiperoides
Polygonum lapathifolium
Polygonum orientale
Polygonum pensylvanicum
Polygonum persicaria
Polygonum punctatum
Polygonum sagittatum
Polygonum scandens
Polygonum virginianum
Portulaca oleracea
Potentilla anserina
Potentilla argentea
No
n-N
a
Sta tive
tus
narrow-leaved plantain
common plantain
hoary plantain
Rugel's plantain
club-spur orchid
tall white bog orchid
tubercled orchid
northern green orchid
ragged fringed orchid
small northern bog orchid
purple fringed orchid
may-apple
rose pogonia
clammyweed
fringed polygala
purple milkwort
Seneca snakeroot
whorled milkwort
hairy Solomon's-seal
striate knotweed
knotweed
creeping knotweed
fringed bindweed
black bindweed
Japanese knotweed
Douglas' knotweed
water-pepper
mild water-pepper
pale smartweed
prince's feather
pink knotweed
lady's-thumb
dotted smartweed
arrow-leaved tearthumb
climbling false buckwheat
jumpseed
garden purslane
silverweed
silvery cinquefoil
Subspecies/
Variety
CO
SE
WI
C
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
No
Yes
Yes
No
Yes
No
No
Yes
No
Yes
No
No
No
No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
No
Yes
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Notes
Synonym: Habenaria clavellata / Historic record - 1907
Synonym: Habenaria dilatata / Historic record - 1947
Synonym: Habenaria flava / Historical record - 1891
Synonym: Habenaria hyperborea
Synonym: Habenaria lacera / Historic record - 1910
Synonym: Habenaria obtusata
Synonym: Habenaria psycodes
Historic record - 1940
Historic record - 1903
Synonym: Polygonum monspeliensis
Synonym: Bilderdykia convolvulus
Synonym: Reynoutria japonica
Synonym: Tovara virginiana
=? Potentilla argentea x Potentilla recta / Synonyms:
Potentilla canescens, Potentilla x intermedia of ON reports
No
n-N
a
Sta tive
tus
Pe
el
Re
gio
n
CV
C
Yes
Yes
SE1
S5
S5
S5
SE5
S5
SE2
S5
S4S5
Yes
No
No
No
Yes
No
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
No
Yes
Yes
No
Yes
No
G?
Salvia nemorosa
Sanguinaria canadensis
Sanicula marilandica
Sanicula odorata
Saponaria officinalis
Sarracenia purpurea
Satureja hortensis
Saxifraga virginiensis
Scheuchzeria palustris
G?
G5
G5
G5
G?
G5
G?
G5
G5
wood sage
bloodroot
black snakeroot
clustered snakeroot
bouncing-bet
pitcher-plant
summer thyme
early saxifrage
scheuchzeria
var. caricetorum
var. hispidus
var. recurvatus
var. sceleratus
ssp. hispida
ssp. acetosella
ssp. obtusifolius
rare
GT
AS
tat
us
Yes
Salsola kali
Russian thistle
ssp. lanceolatus
Pro
vS
tat
us
SE5
SE5
SE2
S5
S5
S5
S5
SE1
S5
S4S5
S5
S5
SE5
S4?
S5
S3
S5
S5
SE5
S5
SE1
SE2
SE2
S5
SE5
S5
S5
SE4
SEU
SE5
SE1
SE5
S4S5
S4
SE4
Potentilla recta
Potentilla reptans
Potentilla simplex
Prenanthes alba
Prenanthes altissima
Prunella vulgaris
Pulmonaria officinalis
Pyrola asarifolia
Pyrola chlorantha
Pyrola elliptica
Ranunculus abortivus
Ranunculus acris
Ranunculus flabellaris
Ranunculus hispidus
Ranunculus hispidus
Ranunculus pensylvanicus
Ranunculus recurvatus
Ranunculus repens
Ranunculus sceleratus
Ratibida columnifera
Rheum rhabarbarum
Robinia viscosa
Rorippa palustris
Rorippa sylvestris
Rudbeckia hirta
Rudbeckia laciniata
Rudbeckia triloba
Rumex acetosella
Rumex crispus
Rumex longifolius
Rumex obtusifolius
Rumex orbiculatus
Rumex triangulivalvis
Sagina procumbens
Subspecies/
Variety
CO
SE
WI
C
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
S-R
an
k
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
G?
G?
G5
G5
G5?
G5T?
NR
G5
G5
G5
G5
G5
G5
G5T5
G5T5
G5
G5
G?
G5
G5
G?
G3
G5
G5
G5
G5
G4
G5
G?
G?
G5
G5
G5
G5
Scientific Name
rough-fruited cinquefoil
creeping cinquefoil
Canada cinquefoil
white-lettuce
tall white-lettuce
American heal-all
lungwort
pink pyrola
green pyrola
shinleaf
kidney-leaf buttercup
tall buttercup
yellow water buttercup
swamp buttercup
swamp buttercup
bristly crowfoot
hooked buttercup
creeping spearwort
cursed crowfoot
prairie coneflower
rhubarb
clammy locust
marsh yellow cress
creeping yellow cress
black-eyed susan
cut-leaved coneflower
thin-leaved coneflower
sheep sorrel
curled dock
yard dock
bitter dock
great water dock
willow-leaved dock
creeping pearlwort
Credit Valley Conservation
Yes
Yes
No
No
No
No
Yes
No
No
No
No
Yes
No
No
No
No
No
Yes
No
Yes
Yes
Yes
No
Yes
No
No
Yes
Yes
Yes
Yes
Yes
No
No
Yes
GRa
nk
Common Name
CV
C/P
ee
lS
tat
us
Plants of the Credit River Watershed
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 16
rare
rare
rare
rare
rare
rare
rare
rare
Notes
Synonym: Pyrola virens / Historic record - 1904
Synonym: Ranunculus septentrionalis
Historic record - 1918
Synonym: Rheum rhaponticum
Synonym: Rorippa islandica of NA reports
Historic record - 1910
Synonyms: Rumex mexicanus, Rumex salicifolius
Synonyms: Salsola pestifer, Salsola ruthenica, Salsola
tragus
Historic record - 1942
Synonym: Sanicula gregaria / Historic record - 1929
Historic record - 1889
Historic record - 1901
No
n-N
a
Sta tive
tus
Pe
el
Re
gio
n
CV
C
Yes
No
Yes
Yes
Yes
No
No
No
Yes
No
Yes
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
G?
Sinapis arvensis
Sisymbrium altissimum
Sisymbrium officinale
Sisyrinchium montanum
Sium suave
Smilax herbacea
Solanum nigrum
Solanum ptycanthum
Solanum rostratum
Solidago altissima
Solidago bicolor
Solidago caesia
Solidago canadensis
Solidago flexicaulis
Solidago gigantea
Solidago hispida
Solidago juncea
Solidago nemoralis
Solidago patula
Solidago rugosa
Solidago squarrosa
G?
G?
G?
G5
G5
G5
G?
G5
G5
NR
G5
G5
G5
G5
G5
G5
G5
G5
G5
G5
G4?
charlock
tumble mustard
hedge mustard
little blue-eyed grass
water-parsnip
carrion-flower
black nightshade
American black nightshade
buffalo-bur
tall goldenrod
silver-rod
blue-stemmed goldenrod
Canada goldenrod
zig-zag goldenrod
giant goldenrod
hairy goldenrod
early goldenrod
gray goldenrod
rough-leaved goldenrod
rough goldenrod
stout goldenrod
ssp. fabaria
var. altissima
var. hispida
ssp. nemoralis
ssp. rugosa
GT
AS
tat
us
Yes
SE5
SE5
SE5
S5
S5
S4
SE1
S5
SE1
S5
S4?
S5
S5
S5
S5
S5
S5
S5
S5
S5
S5
Sinapis alba
white mustard
ssp. parvula
Pro
vS
tat
us
SE2
SE2
SE5
S4
S4
S5
S5
S4
SE5
SE1
SE1
SE1
SE2
S5
SE3
SE5
S5
S5
SE1
SE5
SE5
SE5
SE1
Scilla siberica
Scleranthus annuus
Scrophularia lanceolata
Scrophularia marilandica
Scutellaria galericulata
Scutellaria lateriflora
Scutellaria parvula
Sedum acre
Sedum album
Sedum hispanicum
Sedum spurium
Sedum telephium
Senecio aureus
Senecio viscosus
Senecio vulgaris
Sicyos angulatus
Silene antirrhina
Silene dichotoma
Silene latifolia
Silene noctiflora
Silene vulgaris
Silybum marianum
Subspecies/
Variety
CO
SE
WI
C
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
S-R
an
k
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
G?
G?
G5
G5
G5
G5
G4
G?
G?
G?
G?
G?
G5
G?
G?
G5
G5
G?
G?
G?
G?
G?
Scientific Name
squill
annual knawel
lance-leaved figwort
carpenter's-square
hooded skullcap
mad-dog skullcap
small skullcap
mossy stonecrop
white stonecrop
Spanish stonecrop
false stonecrop
live-forever
golden ragwort
sticky groundsel
common groundsel
bur cucumber
sleepy catchfly
forking catchfly
white campion
night-flowering catchfly
bladder campion
milk thistle
Credit Valley Conservation
Yes
Yes
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
GRa
nk
Common Name
CV
C/P
ee
lS
tat
us
Plants of the Credit River Watershed
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 17
rare
rare
rare
rare
rare
rare
rare
rare
Notes
Historic record - 1920
Synonym: Scutellaria epilobiifolia
Historic record - 1902
Synonym: Sedum purpureum
Synonyms: Lychnis alba, Silene alba, Silene pratensis
Synonym: Silene cucubalus
Historic record - 1913
Synonyms: Brassica alba, Brassica hirta / Historic record 1902
Synonym: Brassica kaber
Synonym: Sisyrinchium bermudianum
Synonym: Solanum americanum
G?
G?
G?
G5
G?
G?
G?
G?
G4G5
G5
G?
G?
G?
G?
G?
G?
G?
G?
G5
G5
SE2
SE5
SE3
S5
SE4
SE5
SE4?
SE5
S4
S5
SE4
SE5
SE5
SE4
SE4
SEH
SE5
SE5
S5
S5
Credit Valley Conservation
ssp. arcticus
ssp. pratensis
ssp. borealis
ssp. elegans
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 18
rare
CV
C
Thladiantha dubia
Thlaspi arvense
Thymus praecox
Tiarella cordifolia
Torilis japonica
Tragopogon dubius
Tragopogon porrifolius
Tragopogon pratensis
Triadenum fraseri
Trientalis borealis
Trifolium arvense
Trifolium aureum
Trifolium campestre
Trifolium dubium
Trifolium hybridum
Trifolium incarnatum
Trifolium pratense
Trifolium repens
Trillium cernuum
Trillium erectum
golden creeper
field penny-cress
creeping thyme
foam-flower
Japanese hedge-parsley
large goat's-beard
common salsify
meadow goat's-beard
marsh St. John's-wort
star-flower
rabbit-foot clover
hop clover
large hop clover
small hop clover
alsike clover
crimson clover
red clover
white clover
nodding trillium
red trillium
ssp. canadense
rare
Pe
el
Re
gio
n
S3
ssp. officinale
rare
No
n-N
a
Sta tive
tus
G5
rue-anemone
ssp. arvensis
ssp. asper
CV
C/P
ee
lS
tat
us
Thalictrum thalictroides
Solidago uliginosa
Sonchus arvensis
Sonchus asper
Sonchus oleraceus
Spergularia media
Spiranthes cernua
Stachys hispida
Stachys palustris
Stellaria graminea
Stellaria longifolia
Stellaria media
Streptopus roseus
Symphytum asperum
Symphytum officinale
Symplocarpus foetidus
Taenidia integerrima
Tanacetum parthenium
Tanacetum vulgare
Taraxacum erythrospermum
Taraxacum officinale
Teucrium canadense
Thalictrum dioicum
Thalictrum pubescens
GT
AS
tat
us
S5
SE5
SE5
SE5
SE3
S5
S4S5
SE5
SE5
S5
SE5
S5
SE2
SE5
S5
S4
SE3
SE5
SE5
SE5
S5?
S5
S5
bog goldenrod
field sow-thistle
spiny-leaved sow-thistle
annual sow-thistle
saltmarsh sand spurrey
nodding ladies'-tresses
rough hedge-nettle
marsh hedge-nettle
grass-leaved stitchwort
long-leaved chickweed
common chickweed
rose twisted-stalk
prickly comfrey
common comfrey
skunk-cabbage
yellow pimpernel
common feverfew
common tansy
red-seeded dandelion
common dandelion
wood germander
early meadow-rue
tall meadow-rue
Subspecies/
Variety
Pro
vS
tat
us
G4G5
G?
G?
G?
G?
G5
G4Q
G5
G?
G5
G?
G5
G?
NR
G5
G5
G?
G?
G?
G5
G5
G5
G5
Scientific Name
CO
SE
WI
C
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
No
Yes
Yes
Yes
Yes
No
No
No
Yes
No
Yes
No
Yes
Yes
No
No
Yes
Yes
Yes
Yes
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
No
Yes
Yes
No
No
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Notes
Synonym: Sonchus uliginosa
Synonym: Arenaria media
Synonym: Stachy tenuifolia of ON reports
Synonym: Chrysanthemum parthenium
Synonym: Thalictrum polygamum
Synonym: Anemonella thalictroides / Historic record - 1911
Synonym: Thymus serpyllum
Synonym: Tragopogon major
Synonym: Trifolium agrarium
Synonym: Trifolium procumbens
Historic record - 1900
Credit Valley Conservation
ssp. nigra
ssp. pallens
var. sagittata
Pro
vS
tat
us
CO
SE
WI
C
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 19
rare
CV
C
ssp. serpyllifolia
rare
rare
Pe
el
Re
gio
n
ssp. peregrina
S5
S5?
S5
SE1
SE5
SE2
S5
S5
SE3
SE5
SE5
SE1
SE5
S5
S4
S4
S5
SE1?
S5
SE5
SE5
S4
SE3
SE5
S5
SE4
S5
SE5
SE5
SE5
SE5
SE5
S4S5
SE4
S4S5
S5
S5
S5
SE4
S5
SE2
S5
S5
S5
S4
No
n-N
a
Sta tive
tus
ssp. dioica
ssp. gracilis
G5
G5
G5
G?
G?
G5T?
G5T?
G5
G?
G?
G?
G?
G?
G5
G5
G5
G5
G?
G5
G5
G?
G5
G?
G5
G5
G5
G5
G?T?
G?
G?
G?
G5
G5
G?
G4G5
G5
G5
G4G5
G?
G5
G?
G5
G5
G5
G5
CV
C/P
ee
lS
tat
us
Trillium grandiflorum
Trillium undulatum
Triosteum aurantiacum
Triticum aestivum
Tussilago farfara
Urtica dioica
Urtica dioica
Uvularia grandiflora
Vaccaria hispanica
Valeriana officinalis
Verbascum blattaria
Verbascum phlomoides
Verbascum thapsus
Verbena hastata
Verbena simplex
Verbena stricta
Verbena urticifolia
Veronica agrestis
Veronica americana
Veronica anagallis-aquatica
Veronica arvensis
Veronica catenata
Veronica longifolia
Veronica officinalis
Veronica peregrina
Veronica persica
Veronica scutellata
Veronica serpyllifolia
Vicia cracca
Vicia sativa
Vicia tetrasperma
Vicia villosa
Viola adunca
Viola arvensis
Viola blanda
Viola canadensis
Viola conspersa
Viola cucullata
Viola kitaibeliana
Viola macloskeyi
Viola odorata
Viola pubescens
Viola renifolia
Viola rostrata
Viola sagittata
Subspecies/
Variety
GT
AS
tat
us
white trillium
painted trillium
wild-coffee
common wheat
coltsfoot
European stinging nettle
American stinging nettle
large-flowered bellwort
cow cockle
common valerian
moth mullein
clasping mullein
common mullein
blue vervain
narrow-leaved vervain
hoary vervain
white vervain
field speedwell
American brooklime
European water speedwell
corn speedwell
water speedwell
long-leaved speedwell
common speedwell
purslane speedwell
bird's-eye speedwell
marsh speedwell
thyme-leaved speedwell
cow vetch
common vetch
slender vetch
hairy vetch
hooked-spur violet
wild pansy
sweet white violet
Canada violet
dog violet
marsh blue violet
field pansy
northern white violet
sweet violet
yellow violet
kidney-leaved violet
long-spurred violet
arrow-leaved violet
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
No
No
No
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Yes
No
Yes
Yes
No
Yes
Yes
No
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Yes
No
No
No
No
Yes
No
Yes
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Notes
Historic record - 1947
Synonyms: Triticum sativum, Triticum vulgare
Synonyms: Urtica gracilis, Urtica procera
Synonyms: Saponaria vaccaria, Vaccaria pyramidata
Synonym: Vicia angustifolia
Synonym: Viola incognita
Synonym: Viola papilionacea of ON reports (in part)
Historic record - 1897
Synonym: Viola pallens
Synonyms: Viola eriocarpa, Viola pensylvanica
Synonym: Viola fimbriatula
rare
rare
rare
CV
C
rare
Pe
el
Re
gio
n
CV
C/P
ee
lS
tat
us
SE2
SE2
SE5
S5
S5
S5
S4S5
SE3
SE5
S4
SE4
SE4
SE3
SE3
S4S5
S5
SE4
SE2
SE5
SE4
S4
SE4
SE5
SE5
S5
S5
S5
S5
S4S5
S5
S5
S5
S5
S5
S5
S5
S5
S5
Pro
vS
tat
us
G5
G?
G4G5
G5
G5
G5
G5
G5
G?
G5
G?
G?
G?
G?
G5
G5
G?
G?
G4G5T?
G?
G5
G?
G?
G?
G5
G5
G5
G5?
G5
G5
G5
G5?
G5
G5
G5
G5
G5
G5
CO
SE
WI
C
S5
S5
SE3
S5
S5
S5
Viola selkirkii
Viola sororia
Viola tricolor
Waldsteinia fragarioides
Xanthium strumarium
Zizia aurea
No
n-N
a
Sta tive
tus
graminoid
G5?
G5
G?
G5
G?
G5
Subspecies/
Variety
GT
AS
tat
us
Selkirk's violet
woolly blue violet
tricolor pansy
barren strawberry
common cocklebur
golden alexanders
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
No
No
Yes
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
No
Yes
Yes
Yes
Yes
No
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Notes
Synonym: Viola papilionacea of ON reports (in part)
Synonym: Xanthium pensylvanicum
A non-woody, narrow-leaved plant, including grasses, sedges and rushes.
crested wheatgrass
colonial bent grass
redtop
upland bent grass
rough hair grass
creeping bent grass
short-awned foxtail
marsh foxtail
meadow foxtail
big bluestem
sweet grass
tall oatgrass
wild oats
common oats
bearded short-husk
fringed brome
upright chess
soft brome
smooth brome
Japanese chess
broad-glumed brome
cheat chess
downy chess
corn gromwell
Canada bluejoint
sedge
water sedge
sedge
sedge
golden sedge
sedge
sedge
sedge
sedge
sedge
sedge
sedge
sedge
Credit Valley Conservation
Agropyron cristatum
Agrostis capillaris
Agrostis gigantea
Agrostis perennans
Agrostis scabra
Agrostis stolonifera
Alopecurus aequalis
Alopecurus geniculatus
Alopecurus pratensis
Andropogon gerardii
Anthoxanthum odoratum
Arrhenatherum elatius
Avena fatua
Avena sativa
Brachyelytrum erectum
Bromus ciliatus
Bromus commutatus
Bromus hordeaceus
Bromus inermis
Bromus japonicus
Bromus latiglumis
Bromus secalinus
Bromus tectorum
Buglossoides arvensis
Calamagrostis canadensis
Carex alopecoidea
Carex aquatilis
Carex arctata
Carex atherodes
Carex aurea
Carex bebbii
Carex blanda
Carex bromoides
Carex brunnescens
Carex buxbaumii
Carex canescens
Carex castanea
Carex cephaloidea
ssp. pectinatum
ssp. odoratum
ssp. hordaceus
ssp. inermis
ssp. secalinus
ssp. brunnescens
ssp. cannescens
rare
rare
rare
Page 20
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Synonym: Agropyron pectiniforme
Synonym: Agrostis tenuis
Synonym: Agrostis alba, in part
Synonym: Agrostis palustris
Synonym: Bromus dudleyi
Synonym: Bromus mollis
Synonym: Lithospermum arvense
Carex grisea
sedge
sedge
bristly sedge
sedge
bladder sedge
lake sedge
sedge
sedge
sedge
sedge
sedge
sedge
sedge
sedge
bristly sedge
sedge
sedge
sedge
sedge
sedge
few-flowered sedge
sedge
Carex hirtifolia
Carex hitchcockiana
Carex hystericina
Carex interior
Carex intumescens
Carex lacustris
Carex laevivaginata
Carex lasiocarpa
Carex laxiculmis
Carex laxiflora
Carex leptalea
Carex leptonervia
Carex limosa
Carex lupulina
Carex lurida
Carex magellanica
Carex merritt-fernaldii
Carex molesta
Carex muhlenbergii
Carex pallescens
Carex pauciflora
Carex peckii
Credit Valley Conservation
ssp. leptalea
ssp. irrigua
var. muhlenbergii
rare
rare
rare
rare
rare
rare
rare
rare
rare
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
rare
rare
No
Yes
Yes
rare
rare
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
No
No
No
Yes
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 21
CV
C/P
ee
lS
tat
us
S5
S5
S5
S5
S5
S5
S4
S5
S4
S5
S5
S5
S5
S5
S5
S5
S5
S4?
S4S5
S5
S5
S5
rare
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
No
GT
AS
tat
us
G5
G5
G5
G5
G5
G5
G5
G5
G5
G5
G5
G4
G5
G5
G5
G5T5
G5
G4
G5
G5
G5
G4G5
Pro
vS
tat
us
S5
S5
S5
S5
S3
S5
S5
S5
S5
S5
S5
S4S5
S5
S5
S5
S5
S5
S3
S5
S5
S4
CV
C
sedge
ssp. echinata
G5
G5
G5
G5
G4
G5
G5
G5
G4
G5
G5
G5
G5
G5
G5
G5
G5
G5?
G5
G5
G4
Pe
el
Re
gio
n
Carex cephalophora
Carex chordorrhiza
Carex communis
Carex comosa
Carex conoidea
Carex crawfordii
Carex crinita
Carex cristatella
Carex cryptolepis
Carex deweyana
Carex diandra
Carex digitalis
Carex disperma
Carex eburnea
Carex echinata
Carex flava
Carex foenea
Carex gracilescens
Carex gracillima
Carex granularis
Carex grayi
No
n-N
a
Sta tive
tus
sedge
sedge
woodland sedge
sedge
sedge
sedge
sedge
sedge
sedge
woodland sedge
sedge
sedge
sedge
sedge
sedge
sedge
sedge
sedge
sedge
sedge
sedge
Subspecies/
Variety
CO
SE
WI
C
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Notes
Historic record - 1908
Synonym: Carex muricata
Synonym: Carex siccata
Synonym: Carex amphibola Steudel var. turgida Fernald
Synonym: Carex paupercula
Historic record - 1907
Yes
Yes
G5
G5
G5
G5
G5
G5
G?
G5?
G5
G5
G4
G5
G5
G5
G5
G4
S5
S5
S5
S5
S5
S5
SE5
S5
S5
S5
S4
S5
SX
S4S5
S5
S4
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
G5
S5
G5
G5
G5
G5
G4Q
G5
G5
G5
G?
G5
G5
G5
S5
S5
S5
S5
S4
S4
S4
S5
SE1
S5
S5
S4
Cyperus odoratus
G5
Cyperus strigosus
G5
S5
S5
S5
S5
S5
SE5
S5
S4
S5
S5
sedge
Carex radiata
G4
sedge
sedge
sedge
sedge
sedge
sedge
sedge
sedge
sedge
water sedge
sedge
sedge
sedge
sedge
sedge
bladder sedge
Carex retrorsa
Carex rosea
Carex rugosperma
Carex scabrata
Carex scoparia
Carex sparganioides
Carex spicata
Carex sprengelii
Carex stipata
Carex stricta
Carex sychnocephala
Carex tenera
Carex torta
Carex tribuloides
Carex trisperma
Carex tuckermanii
sedge
Carex utriculata
sedge
sedge
sedge
fox sedge
sedge
long-spined sandbur
wood reed
nodding wood reed
crested dog's-tail
riverbank umbrella-sedge
yellow nut-grass
slender umbrella-sedge
Carex vaginata
Carex vesicaria
Carex viridula
Carex vulpinoidea
Carex woodii
Cenchrus longispinus
Cinna arundinacea
Cinna latifolia
Cynosurus cristatus
Cyperus bipartitus
Cyperus esculentus
Cyperus lupulinus
fragrant umbrella-sedge
straw-colored umbrella-sedge
Subspecies/
Variety
var. trisperma
ssp. viridula
ssp. macilentus
Pro
vS
tat
us
No
G5
G5
G5
G5
G5
G5
G5?
G4
G5
G5
Scientific Name
CO
SE
WI
C
S5
S-R
an
k
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
GRa
nk
CV
C
rare
rare
rare
Pe
el
Re
gio
n
rare
rare
No
n-N
a
Sta tive
tus
CV
C/P
ee
lS
tat
us
rare
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Carex pedunculata
Carex pellita
Carex pensylvanica
Carex plantaginea
Carex platyphylla
Carex praegracilis
Carex prairea
Carex prasina
Carex projecta
Carex pseudo-cyperus
Credit Valley Conservation
rare
No
No
No
No
No
Yes
No
No
No
No
sedge
sedge
woodland sedge
plantain-leaved sedge
broad-leaved sedge
sedge
sedge
sedge
sedge
sedge
Common Name
GT
AS
tat
us
Plants of the Credit River Watershed
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
No
No
No
No
No
No
Yes
No
No
No
No
No
No
No
No
No
rare
No
Yes
Yes
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
No
No
No
No
No
No
No
No
Yes
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
S5
rare
rare
No
Yes
Yes
S5
rare
rare
No
Yes
Yes
rare
rare
Page 22
Notes
Synonmy: Carex lanuginosa
Historic record - 1935
Synonym: Carex rosea of most early ON reports, including
PCF
Synonym: Carex convoluta
Synonym: Carex tonsa var. rugosperma
Historic record - 1910
Synonym: Carex rostrata of most ON reports, including
PCF
Historic record - 1892
Synonym: Cyperus rivularis
Synonym: Cyperus filiculmis
Synonyms: Cyperus engelmannii, Cyperus ferruginescens
Digitaria cognatum
smooth crabgrass
large crabgrass
three-way sedge
barnyard grass
small-spiked barnyard grass
needle spike-rush
red-footed spike-rush
intermediate spike-rush
obtuse spike-rush
marsh spike-rush
Canada wild-rye
bottlebrush grass
quack grass
riverbank wild-rye
western wheatgrass
slender wheatgrass
hairy wild-rye
Virginia wild-rye
Wiegand's wild-rye
stink grass
tall love-grass
little love-grass
tufted love-grass
slender cotton-grass
sheathed cotton-grass
tawny cotton-grass
thin-leaved cotton-grass
tall fescue
Digitaria ischaemum
Digitaria sanguinalis
Dulichium arundinaceum
Echinochloa crusgalli
Echinochloa microstachya
Eleocharis acicularis
Eleocharis erythropoda
Eleocharis intermedia
Eleocharis obtusa
Eleocharis smallii
Elymus canadensis
Elymus hystrix
Elymus repens
Elymus riparius
Elymus smithii
Elymus trachycaulus
Elymus villosus
Elymus virginicus
Elymus wiegandii
Eragrostis cilianensis
Eragrostis hypnoides
Eragrostis minor
Eragrostis pectinacea
Eriophorum gracile
Eriophorum vaginatum
Eriophorum virginicum
Eriophorum viridi-carinatum
Festuca arundinacea
hard fescue
slender fescue
meadow fescue
red fescue
nodding fescue
northern manna grass
rattlesnake manna grass
tall manna grass
rough manna grass
floating manna grass
fowl manna grass
velvet grass
Credit Valley Conservation
ssp. cognatum
G5
S1
G?
G5
G5
G?
G5Q
G5
G5
G5
G5
G5?
G5
G5
G?
G5
G5
G5T5
G5
G5
G?
G?
G5
G?
G5
G5
G5T5
G5
G4
G?
SE5
SE5
S5
SE5
S4S5
S5
S5
S4
S5
S5
S4S5
S5
SE5
S4?
SE2
S5?
S4
S5
S4
SE5
S4
SE5
S5
S5
S5
S5
S5
SE5
Festuca brevipila
G?
Festuca filiformis
Festuca pratensis
Festuca rubra
Festuca subverticillata
Glyceria borealis
Glyceria canadensis
Glyceria grandis
Glyceria maxima
Glyceria septentrionalis
Glyceria striata
Holcus lanatus
G5
G5
G5
G5
G5
G5
G5
G?
G5
G5
G?
ssp. trachycaulus
var. virginicus
var. pectinacea
ssp. spissum
ssp. rubra
rare
rare
CV
C/P
ee
lS
tat
us
GT
AS
tat
us
Pro
vS
tat
us
SE5
S5
Yes
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
No
No
No
No
No
No
No
No
Yes
No
Yes
No
No
No
No
Yes
No
Yes
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
No
No
Yes
Yes
Yes
SE4
Yes
Yes
Yes
SE2
SE5
S5
S4
S5
S4S5
S4S5
SE5
S4
S5
SE2
Yes
Yes
No
No
No
No
No
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 23
rare
CV
C
fall witch-grass
G?
G5
Pe
el
Re
gio
n
Dactylis glomerata
Danthonia spicata
No
n-N
a
Sta tive
tus
orchard grass
poverty oat-grass
Subspecies/
Variety
CO
SE
WI
C
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Notes
Synonym: Leptoloma cognatum / Native status is uncertain
Synonym: Echinochloa wiegandii
Synonym: Eleocharis palustris of ON reports
Historic record - 1911
Synonym: Hystrix patula
Synonym: Agropyron repens
Synonym: Agropyron smithii / Historic record - 1918
Synonym: Agropyron trachycaulum
Synonym: Eragrostis megastachya
Synonym: Eragrostis pooides
Historic record - 1890
Synonym: Eriophorum spissum / Historic record - 1890
Synonyms: Festuca longifolia of ON reports including PCF,
Festuca ovina, Festuca trachyphylla
Synonym: Festuca tenuifolia / Historic record - 1891
Synonym: Festuca elatior
Synonym: Festuca obtusa
Synonym: Glyceria fluitans
dwarf panic grass
Panicum acuminatum
var. acuminatum
witch grass
fall panic grass
broad-leaved panic grass
narrow-leaved panic grass
broom-corn millet
reed canary grass
canary grass
timothy
common reed
woodland bluegrass
annual bluegrass
bulbous bluegrass
Panicum capillare
Panicum dichotomiflorum
Panicum latifolium
Panicum linearifolium
Panicum miliaceum
Phalaris arundinacea
Phalaris canariensis
Phleum pratense
Phragmites australis
Poa alsodes
Poa annua
Poa bulbosa
Credit Valley Conservation
ssp. solutus
ssp. multiflora
var. mexicana
var. sylvatica
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
No
Yes
Yes
No
Yes
Yes
Yes
Yes
S5
No
Yes
Yes
S5
SE5
S4
S4S5
SE4
S5
SE2
SE5
S5
S4
SE5
SE3
No
Yes
No
No
Yes
No
Yes
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
SE5
SE2
S5
S5
S5
S5
S5
S5
SE5
S5
S5
S5
S5
S5
S5
S5
S4
SE4
SEH
S5
S5
S4?
S4S5
SEH
S4
S5
S5
S1
S5
S4
G5
G5
G5
G5
G5
G?
G5
G?
G?
G5
G4?
G?
G?
rare
GT
AS
tat
us
Yes
Yes
No
No
No
No
No
No
Yes
No
No
No
No
No
No
No
No
Yes
Yes
No
No
No
No
Yes
No
No
No
No
No
No
G5
G?
G5
G5
G5
G5
G5
G5
G5
G5
G5
G5
G5
G5
G5
G5
G5
G?
G?
G5
G5
G4
G5
G?
G5
G5
G5
G5
G5
G5
Pro
vS
tat
us
CV
C
ssp. jubatum
Pe
el
Re
gio
n
Hordeum jubatum
Hordeum vulgare
Juncus alpinoarticulatus
Juncus articulatus
Juncus balticus
Juncus brevicaudatus
Juncus bufonius
Juncus canadensis
Juncus compressus
Juncus dudleyi
Juncus effusus
Juncus nodosus
Juncus pylaei
Juncus tenuis
Juncus torreyi
Leersia oryzoides
Leersia virginica
Lolium perenne
Lolium temulentum
Luzula acuminata
Luzula multiflora
Melica smithii
Milium effusum
Miscanthus sacchariflorus
Muhlenbergia frondosa
Muhlenbergia glomerata
Muhlenbergia mexicana
Muhlenbergia sylvatica
Oryzopsis asperifolia
Oryzopsis racemosa
No
n-N
a
Sta tive
tus
foxtail barley
common barley
alpine rush
jointed rush
Baltic rush
short-tailed rush
toad rush
Canada rush
compressed rush
path rush
soft rush
knotted rush
path rush
path rush
Torrey's rush
rice cut-grass
white cut-grass
perennial rye-grass
poison rye-grass
hairy woodrush
many-flowered woodrush
melic grass
wood millet
Amur silver grass
wire-stemmed muhly
wild timothy
Mexican muhly
woodland muhly
white-grained mountain-rice
black-grained mountain-rice
CO
SE
WI
C
Subspecies/
Variety
S-R
an
k
Scientific Name
GRa
nk
Common Name
CV
C/P
ee
lS
tat
us
Plants of the Credit River Watershed
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 24
rare
rare
rare
Notes
Synonym: Juncus alpinus
Historic record - 1891
Historic record - 1908
Synonym: Lolium multiflorum
Historic record - 1912
Historic record - 1911
Historic record - 1910
Synonyms: Dichanthelium acuminatum, Panicum
implicatum, Panicum lanuginosum, Panicum praecocius,
Panicum villosissimum
Historic record - 1890
Synonym: Phragmites communis
No
n-N
a
Sta tive
tus
Pe
el
Re
gio
n
CV
C
rare
rare
Yes
Yes
No
rare
rare
rare
rare
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
rare
Yes
No
Yes
Yes
Yes
Yes
rare
No
Yes
Yes
G?
G5
G5
G5
G5?
G?
G5
G5
G5
G5
G5
G5
G4
G5
G5
G5
G5
G4
G5
G5
G?
G?
G?
G?
G?
G?
G5
NR
G5
S5
SE3
S5
S5
S4
SE3
SE5
S5
S5
S4
S5
S5
S2
S5
S4S5
S5
S5
S4?
S5
S5
S5
SE3
SE1
SE5
SE4
SE5
S4
S5
S5
G5
S4
Sphenopholis intermedia
Sporobolus cryptandrus
Sporobolus neglectus
Sporobolus vaginiflorus
Triglochin palustre
Typha angustifolia
Typha latifolia
Typha x glauca
G5
NR
G5
G5
G5
G5
G5
HYB
S4S5
S4
S4
S4
S5
S5
S5
S5
hybrid wheatgrass
x Elyhordeum macounii
HYB
S1
corn
common wild rice
Zea mays
Zizania aquatica
G?
G5
SE2
S4
rare
northern wild rice
Zizania palustris
G4G5
S4
rare
Common Name
Scientific Name
Canada bluegrass
wood bluegrass
fowl bluegrass
Kentucky bluegrass
two-rayed bluegrass
rough bluegrass
saltmarsh grass
white beakrush
false melic grass
little bluestem
hard-stemmed bulrush
green bulrush
Clinton's club-rush
wool-grass
river bulrush
alpine cotton-grass
red-sheathed bulrush
stalked wool-grass
lined bulrush
American sword-grass
soft-stemmed bulrush
rye
foxtail millet
yellow foxtail
bristly foxtail
green foxtail
indian grass
green-fruited burreed
giant burreed
Poa compressa
Poa nemoralis
Poa palustris
Poa pratensis
Poa saltuensis
Poa trivialis
Puccinellia distans
Rhynchospora alba
Schizachne purpurascens
Schizachyrium scoparium
Scirpus acutus
Scirpus atrovirens
Scirpus clintonii
Scirpus cyperinus
Scirpus fluviatilis
Scirpus hudsonianus
Scirpus microcarpus
Scirpus pedicellatus
Scirpus pendulus
Scirpus pungens
Scirpus validus
Secale cereale
Setaria italica
Setaria pumila
Setaria verticillata
Setaria viridis
Sorghastrum nutans
Sparganium emersum
Sparganium eurycarpum
tall cord grass
Spartina pectinata
slender wedge grass
sand dropseed
overlooked dropseed
ensheathed dropseed
marsh arrow-grass
narrow-leaved cattail
common cattail
hybrid cattail
Credit Valley Conservation
Subspecies/
Variety
ssp. pratensis
ssp. purpurascens
ssp. emersum
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 25
CV
C/P
ee
lS
tat
us
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
GT
AS
tat
us
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
S-R
an
k
Pro
vS
tat
us
rare
rare
rare
No
Yes
No
No
No
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
No
No
No
GRa
nk
CO
SE
WI
C
Plants of the Credit River Watershed
Notes
Synonym: Andropogon scoparius
Synonym: Scirpus hattorianus (in part)
Synonym: Scirpus rubrotinctus
Synonym: Scirpus cyperinus var. pedicellatus
Synonym: Scirpus americanus
Historic record - 1890
Synonym: Setaria glauca
Synonym: Sparganium chlorocarpum
Historic record - 1910 / Although native elsewhere in the
province, the Peel record is an introduction.
= Typha angustifolia x Typha latifolia
= Elymus trachycaulus x Hordeum jubatum / Synonyms: x
Agrohordeum macounii, Elymus macounii
Synonym: Zizania aquatica of early ON records (in part) /
Historic record - 1927
No
n-N
a
Sta tive
tus
Pe
el
Re
gio
n
CV
C
S4
S5
rare
rare
No
No
Yes
Yes
No
Yes
G5
G5
G5
G5T5
G5
G5
G5
G?
G?
G?
G5
G5
G5
G5
G5
G5T5
G5
G5?
G5
G5
G5
G?
G5
G5
G4
G5
G?
G5
G5
G5
G5
G4
G5
G5T5
G5
G5
G?
G5
G5T5
G5
S4?
S5?
S4?
S5
S5
S5
SE2
SE5
SE5
SE1
S4
S5
S5
S5
S5
S5
S5
S5
S5
S5
S5
SE2
S5
S5
S4?
S5
SE2
S5
S5
S4
S5
S4
S5
S5
S5
S5
SE5
S5
S5
S5
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
Yes
No
No
No
No
Yes
No
No
No
No
No
No
No
No
No
Yes
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Pro
vS
tat
us
G4
G5
CO
SE
WI
C
CV
C/P
ee
lS
tat
us
shrub
GT
AS
tat
us
herbaceous vines
climbing fumitory
virgin's-bower
Subspecies/
Variety
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
Notes
A non-woody plant with trailing stems
Adlumia fungosa
Clematis virginiana
A multi-stemmed woody plant, usually shorter than a tree.
Saskatoon berry
roundleaf juneberry
running juneberry
bog rosemary
bristly sarsaparilla
black chokeberry
Oregon-grape
Japanese barberry
common barberry
Siberian pea-tree
New Jersey tea
buttonbush
leatherleaf
common pipsissewa
sweet-fern
silky dogwood
bunchberry
gray dogwood
round-leaved dogwood
red osier
beaked hazel
Persian daphne
water-willow
bush honeysuckle
leatherwood
running strawberry-bush
forsythia
creeping snowberry
wintergreen
black huckleberry
witch-hazel
great St. John's-wort
winterberry
common juniper
bog laurel
Labrador-tea
common privet
spicebush
twinflower
fly honeysuckle
Credit Valley Conservation
Amelanchier alnifolia
Amelanchier sanguinea
Amelanchier stolonifera
Andromeda polifolia
Aralia hispida
Aronia melanocarpa
Berberis aquifolium
Berberis thunbergii
Berberis vulgaris
Caragana arborescens
Ceanothus americanus
Cephalanthus occidentalis
Chamaedaphne calyculata
Chimaphila umbellata
Comptonia peregrina
Cornus amomum
Cornus canadensis
Cornus foemina
Cornus rugosa
Cornus stolonifera
Corylus cornuta
Daphne mezereum
Decodon verticillatus
Diervilla lonicera
Dirca palustris
Euonymus obovata
Forsythia viridissima
Gaultheria hispidula
Gaultheria procumbens
Gaylussacia baccata
Hamamelis virginiana
Hypericum ascyron
Ilex verticillata
Juniperus communis
Kalmia polifolia
Ledum groenlandicum
Ligustrum vulgare
Lindera benzoin
Linnaea borealis
Lonicera canadensis
ssp. glaucophylla
ssp. cisatlantica
ssp. obliqua
ssp. racemosa
ssp. cornuta
var. depressa
ssp. longiflora
rare
rare
rare
Page 26
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Synonym: Amelanchier humilis
Synonym: Amelanchier huronensis
Synonym: Andromeda glaucophylla
Historic record - 1889
Synonyms: Aronia prunifolia, Pyrus melanocarpa
Synonym: Mahonia aquifolia
Historic record - 1889
Synonym: Myrica asplenifolia
Synonym: Cornus obliqua
Synonym: Cornus racemosa
Synonym: Hypericum pyramidatum
Credit Valley Conservation
ssp. rydbergii
ssp. melanolasius
CV
C/P
ee
lS
tat
us
GT
AS
tat
us
Pro
vS
tat
us
CO
SE
WI
C
SE1
SE1
SE3
S5
SE5
S5
SE2
SE2
S5
SE1
S5
S5
S5
S5
SE5
SE5
S5
S5
S5
S5
S5
S5
S5
S5
SE2
SE4
SE5
S5
SE1
S5
SE2
SE4
S5
SE4
S5
S5
S5
S5
S5
S5
SE1
SE2
S5
S5
S5
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 27
CV
C
ssp. floribunda
ssp. virginiana
G?
NR
G?
G4
G?
G5
HYB
G?
G5
G?
G5
G5
G5
G5
G?
G?
G5
G5T?
G5
G5
G5
G5
G5
G5
G?
G4G5
G4G5
G5
G?
G5
G?
G?
G5
NR
G5
G5T5
G5
G5
G5
G5
G?
G5
G5
G5
G5
Pe
el
Re
gio
n
Lonicera caprifolium
Lonicera chrysantha
Lonicera morrowii
Lonicera oblongifolia
Lonicera tatarica
Lonicera villosa
Lonicera x bella
Lonicera xylosteum
Mitchella repens
Philadelphus coronarius
Physocarpus opulifolius
Potentilla fruticosa
Prunus virginiana
Rhamnus alnifolia
Rhamnus cathartica
Rhamnus frangula
Rhus glabra
Rhus radicans
Rhus typhina
Ribes americanum
Ribes cynosbati
Ribes glandulosum
Ribes hirtellum
Ribes hudsonianum
Ribes nigrum
Ribes odoratum
Ribes rubrum
Ribes triste
Ribes uva-crispa
Rosa blanda
Rosa canina
Rosa multiflora
Rosa palustris
Rosa rubiginosa
Rubus allegheniensis
Rubus idaeus
Rubus occidentalis
Rubus odoratus
Salix bebbiana
Salix candida
Salix caprea
Salix cinerea
Salix discolor
Salix eriocephala
Salix exigua
Subspecies/
Variety
No
n-N
a
Sta tive
tus
goat-leaf honeysuckle
ornamental honeysuckle
Morrow's honeysuckle
swamp fly honeysuckle
Tartarian honeysuckle
mountain fly honeysuckle
hybrid honeysuckle
European fly honeysuckle
partridge-berry
mock-orange
ninebark
shrubby cinquefoil
choke cherry
alder-leaved buckthorn
common buckthorn
glossy buckthorn
smooth sumac
poison-ivy
staghorn sumac
wild black currant
prickly gooseberry
skunk currant
smooth gooseberry
northern black currant
black garden currant
golden currant
red garden currant
swamp red currant
European currant
smooth rose
dog rose
multiflora rose
swamp rose
sweetbrier rose
mountain blackberry
wild red raspberry
black raspberry
purple-flowering raspberry
Bebb's willow
hoary willow
goat willow
gray willow
pussy willow
heart-leaved willow
sandbar willow
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
Yes
Yes
Yes
No
Yes
No
Yes
Yes
No
Yes
No
No
No
No
Yes
Yes
No
No
No
No
No
No
No
No
Yes
Yes
Yes
No
Yes
No
Yes
Yes
No
Yes
No
No
No
No
No
No
Yes
Yes
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Notes
= Lonicera morrowii x Lonicera tatarica
Synonym: Frangula alnus
Synonym: Toxicodendron rydbergii
Historic record - 1891
Synonym: Ribes aureum
Synonym: Ribes sativum
Synonym: Ribes grossularia
Synonym: Rosa eglanteria
Synonym: Rubus strigosus
Synonym: Salix humilis of PCF
Synonym: Salix rigida
Synonym: Salix interior
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
CV
C
S5
S5
S5
S5
S5
S5
S4S5
S2S3
S4S5
S5
S5
rare
rare
Pe
el
Re
gio
n
G5
G5T5
G5
G4G5Q
G5
G5
G5
G3G5
G5
NR
G5
rare
CV
C/P
ee
lS
tat
us
S5
S5
SE2
S5
SE4
S5
S5
S5
S5
SE4
S5
SE1
SE1
SE1
S4S5
S4
S5
SE3
SE5
S5
S5
S4
S4S5
S5
S5
S4
S5
S5
S5
SE4
S5
S5
S5
No
n-N
a
Sta tive
tus
small trees
ssp. pubens
G5
G4
G?
G4
G5
G4
G5
G5T4T5
G5
G5
G5
G?
G5
G?
G5
G5
G5
G5
G?
G5
G5
G5
G4
G5
G5
G5
G5
G5
G5
G5
G5
G5
G5
GT
AS
tat
us
Salix lucida
Salix pedicellaris
Salix pentandra
Salix petiolaris
Salix purpurea
Salix serissima
Sambucus canadensis
Sambucus racemosa
Shepherdia canadensis
Sorbaria sorbifolia
Spiraea alba
Spiraea chamaedryfolia
Spiraea japonica
Spiraea salicifolia
Spiraea tomentosa
Staphylea trifolia
Symphoricarpos albus
Symphoricarpos occidentalis
Syringa vulgaris
Taxus canadensis
Vaccinium angustifolium
Vaccinium corymbosum
Vaccinium macrocarpon
Vaccinium myrtilloides
Vaccinium oxycoccos
Vaccinium pallidum
Viburnum acerifolium
Viburnum cassinoides
Viburnum lantanoides
Viburnum opulus
Viburnum rafinesquianum
Viburnum trilobum
Zanthoxylum americanum
Pro
vS
tat
us
shining willow
bog willow
bay-leaved willow
slender willow
basket willow
autumn willow
common elderberry
red-berried elderberry
Canada soapberry
false spiraea
common meadowsweet
Asian meadowsweet
Japanese meadowsweet
willow-leaved meadowsweet
hardhack
bladdernut
snowberry
wolfberry
lilac
American yew
lowbush blueberry
highbush blueberry
large cranberry
velvet-leaf blueberry
small cranberry
dryland blueberry
maple-leaved viburnum
wild-raisin
hobblebush
guelder-rose
downy arrow-wood
highbush cranberry
prickly-ash
Subspecies/
Variety
CO
SE
WI
C
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
No
No
Yes
No
Yes
No
No
No
No
Yes
No
Yes
Yes
Yes
No
No
No
Yes
Yes
No
No
No
No
No
No
No
No
No
No
Yes
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Notes
Synonym: Salix gracilis
Synonym: Sambucus pubens
Synonym: Spiraea latifolia
Synonym: Vaccinium vacillans
Synonym: Viburnum alnifolium
A single stemmed woody plant reaching less than 2m in height.
mountain maple
speckled alder
downy juneberry
smooth juneberry
blue-beech
alternate-leaved dogwood
hawthorn
hawthorn
hawthorn
hawthorn
hawthorn
Credit Valley Conservation
Acer spicatum
Alnus incana
Amelanchier arborea
Amelanchier laevis
Carpinus caroliniana
Cornus alternifolia
Crataegus calpodendron
Crataegus corusca
Crataegus holmesiana
Crataegus macracantha
Crataegus macrosperma
ssp. rugosa
ssp. virginiana
Page 28
rare
rare
rare
rare
rare
rare
rare
Synonym: Alnus rugosa
CV
C/P
ee
lS
tat
us
SE2
SE1
S5
S4
S5
S5
SE3
SE2
S5
rare
GT
AS
tat
us
G?
G?
G5
G4G5
G5
G5
G?
G?
G5
Pro
vS
tat
us
SE5
S4
S5
S4?
S5
S4
S4
S4S5
S4S5
SE3
CO
SE
WI
C
G5
G5
G5
G5
G5
G3G4
G3G4
G5
G5
G?
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
CV
C
Crataegus monogyna
Crataegus pedicellata
Crataegus pringlei
Crataegus pruinosa
Crataegus punctata
Crataegus scabrida
Crataegus schuettei
Crataegus submollis
Crataegus succulenta
Elaeagnus angustifolia
Euonymus alata
Euonymus europaea
Malus baccata
Nemopanthus mucronatus
Prunus nigra
Prunus pensylvanica
Sorbus americana
Ulmus pumila
Viburnum lantana
Viburnum lentago
Pe
el
Re
gio
n
trees
Subspecies/
Variety
No
n-N
a
Sta tive
tus
English hawthorn
hawthorn
hawthorn
hawthorn
hawthorn
hawthorn
hawthorn
hawthorn
hawthorn
Russian-olive
winged spindle-tree
spindle tree
Siberian crabapple
mountain-holly
Canada plum
pin cherry
American mountain-ash
Siberian elm
wayfaring tree
nannyberry
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
Yes
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
No
No
No
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
No
No
No
No
Yes
Yes
No
No
Yes
No
No
No
Yes
No
No
Yes
No
No
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Notes
Synonym: Pyrus baccata
Synonym: Pyrus americana
A woody plant usually with a single stem which can reach heights of several metres.
balsam fir
Manitoba maple
Norway maple
red maple
silver maple
black maple
sugar maple
horse-chestnut
tree-of-heaven
yellow birch
white birch
European weeping birch
dwarf birch
bitternut hickory
shagbark hickory
northern catalpa
American beech
white ash
European ash
black ash
red ash
honey locust
butternut
black walnut
Credit Valley Conservation
Abies balsamea
Acer negundo
Acer platanoides
Acer rubrum
Acer saccharinum
Acer saccharum
Acer saccharum
Aesculus hippocastanum
Ailanthus altissima
Betula alleghaniensis
Betula papyrifera
Betula pendula
Betula pumila
Carya cordiformis
Carya ovata
Catalpa speciosa
Fagus grandifolia
Fraxinus americana
Fraxinus excelsior
Fraxinus nigra
Fraxinus pennsylvanica
Gleditsia triacanthos
Juglans cinerea
Juglans nigra
ssp. nigrum
ssp. saccharum
var. ovata
G5
G5
G?
G5
G5
G5Q
G5T?
G?
G?
G5
G5
G?
G5
G5
G5
GU
G5
G5
G?
G5
G5
G5
G3G4
G5
S5
S5
SE5
S5
S5
S4?
S5
SE2
SE5
S5
S5
SE4
S5
S5
S5
SE1
S5
S5
SE2
S5
S5
S2
S3?
S4
rare
Page 29
rare
Synonym: Acer nigrum
Synonym: Betula lutea
Synonym: Betula glandulifera
Pe
el
Re
gio
n
CV
C
Populus x jackii
HYB
hybrid aspen
sweet cherry
cherry plum
sour cherry
black cherry
Nanking cherry
common pear
white oak
swamp white oak
bur oak
red oak
black oak
black locust
white willow
peach-leaved willow
crack willow
black willow
sassafras
European mountain-ash
Populus x rouleauiana
Prunus avium
Prunus cerasifera
Prunus cerasus
Prunus serotina
Prunus tomentosa
Pyrus communis
Quercus alba
Quercus bicolor
Quercus macrocarpa
Quercus rubra
Quercus velutina
Robinia pseudo-acacia
Salix alba
Salix amygdaloides
Salix fragilis
Salix nigra
Sassafras albidum
Sorbus aucuparia
HYB
G?
G?
G?
G5
G?
G5
G5
G5
G5
G5
G5
G5
G5
G5
G?
G5
G5
G5
S2
No
Yes
Yes
SE2
SE4
SE1
SE1
S5
SE1
SE4
S5
S4
S5
S5
S4
SE5
SE4
S5
SE5
S4?
S4
SE4
Yes
Yes
Yes
Yes
No
Yes
Yes
No
No
No
No
No
Yes
Yes
No
Yes
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
GT
AS
tat
us
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Pro
vS
tat
us
No
n-N
a
Sta tive
tus
hybrid poplar
Credit Valley Conservation
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
S5
SE2
S5
SE5
SE5
S5
SE3
S5
S5
S5
S5
S5
SE5
S4
SE1
SE5
S5
S5
S5
SE4
S5
SE1
SE1
SE1
Juniperus virginiana
Larix decidua
Larix laricina
Malus pumila
Morus alba
Ostrya virginiana
Picea abies
Picea glauca
Picea mariana
Pinus banksiana
Pinus resinosa
Pinus strobus
Pinus sylvestris
Platanus occidentalis
Platanus x acerifolia
Populus alba
Populus balsamifera
Populus deltoides
Populus grandidentata
Populus nigra
Populus tremuloides
Populus x berolinensis
Populus x canescens
Populus x heimbergeri
ssp. balsamifera
ssp. monilifera
No
Yes
No
Yes
Yes
No
Yes
No
No
Yes
No
No
Yes
No
Yes
Yes
No
No
No
Yes
No
Yes
Yes
Yes
G5
G?
G5
G5
G?
G5
G?
G5
G5
G5
G5
G5
G?
G5
GU
G5
G5
G5
G5
G5
G5
HYB
HYB
HYB
eastern red cedar
European larch
tamarack
common apple
white mulberry
hop-hornbeam
Norway spruce
white spruce
black spruce
jack pine
red pine
white pine
Scots pine
sycamore
plane-tree
white poplar
balsam poplar
eastern cottonwood
large-tooth aspen
Lombardy poplar
trembling aspen
hybrid poplar
gray poplar
hybrid aspen
CO
SE
WI
C
Subspecies/
Variety
S-R
an
k
Scientific Name
GRa
nk
Common Name
CV
C/P
ee
lS
tat
us
Plants of the Credit River Watershed
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 30
rare
rare
Notes
Synonyms: Malus domestica, Pyrus malus
Native status of this species is uncertain.
Synonym: Platanus hybrida
= Populus laurifolia x Populus nigra
= Populus alba x Populus tremula
= Populus alba x Populus tremuloides
= Populus balsamifera x Populus deltoides / Synonym:
Populus x gileadensis
= Populus alba x Populus grandidentata
Quercus borealis
Synonym: Pyrus aucuparia
G5T?
S5
G5
G5
G5
G5Q
G?
G?
G5
G5
G5
S4
S4S5
S5
S4
SE5
SE5
S4
S1
S5
rare
CV
C/P
ee
lS
tat
us
SE2
S5
S4S5
S5
SE3
SE3?
S5
S5
S4
S5
GT
AS
tat
us
G?
G5
G5
G5
G?
G5
G5
G4G5
G5
G5
Pro
vS
tat
us
S5
S5
S5
S5
S5
S4?
CO
SE
WI
C
G5
G5
G5
G5?
G5
G5
rare
CV
C
Thuja occidentalis
Tilia americana
Tsuga canadensis
Ulmus americana
Ulmus rubra
Ulmus thomasii
Pe
el
Re
gio
n
woody vine
Subspecies/
Variety
No
n-N
a
Sta tive
tus
eastern white cedar
basswood
eastern hemlock
American elm
red elm
rock elm
Scientific Name
S-R
an
k
Common Name
GRa
nk
Plants of the Credit River Watershed
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
Yes
Yes
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
No
No
No
No
Yes
Yes
No
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Notes
A woody plant with trailing stems.
oriental bittersweet
climbing bittersweet
purple clematis
trailing arbutus
Japanese hops
common hops
limber honeysuckle
hairy honeysuckle
moonseed
common Virginia creeper
Celastrus orbiculatus
Celastrus scandens
Clematis occidentalis
Epigaea repens
Humulus japonicus
Humulus lupulus
Lonicera dioica
Lonicera hirsuta
Menispermum canadense
Parthenocissus inserta
poison-ivy
Rhus radicans
northern dewberry
swamp dewberry
dwarf raspberry
bristly greenbrier
climbing nightshade
periwinkle
summer grape
fox grape
riverbank grape
Rubus flagellaris
Rubus hispidus
Rubus pubescens
Smilax hispida
Solanum dulcamara
Vinca minor
Vitis aestivalis
Vitis labrusca
Vitis riparia
Credit Valley Conservation
var. occidentalis
var. lupulus
ssp. negundo
rare
rare
rare
rare
rare
rare
rare
rare
rare
rare
Page 31
rare
rare
rare
Historic record - 1891
Synonym: Parthenocissus vitacea
Synonyms: Rhus radicans ssp. radicans of PCF,
Toxicodendron negundo
Synonym: Smilax tamnoides
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