33 Invasive Plants Prohibited from
Sale in Maine
What you need to Know
In January 2017 changes were adopted to CMR 01-001 Chapter 273: Criteria for Listing Invasive Terrestrial
Plants. These changes make it illegal to sell, import, export, buy or intentionally propagate for sale the 33
plant species listed below.
Acer ginnala (amur maple)
Hesperis matronalis (dame’s rocket)
Acer platanoides (Norway maple)
Impatiens glandulifera (ornamental jewelweed)
Aegopodium podagraria (bishop’s weed)
Iris pseudacorus (yellow iris)
Ailanthus altissima (tree of heaven)
Ligustrum vulgare (common privet)
Alliaria petiolate (garlic mustard)
Lonicera japonica (Japanese honeysuckle)
Amorpha fruticosa (false indigo bush)
Lonicera maackii (amur or bush honeysuckle)
Ampelopsis glandulosa (porcelain berry)
Lonicera morrowii (Morrow’s honeysuckle)
Artemisia vulgaris (common mugwort)
Lonicera tatarica (Tatarian honeysuckle)
Berberis thunbergii (Japanese barberry)
Lythrum salicaria (purple loosestrife)
Berberis vulgaris (common barberry)
Microstegium vimineum (Japanese stilt grass)
Celastrus orbiculatus (Asiatic bittersweet)
Paulownia tomentosa (paulownia, princess tree)
Elaeagnus umbellata (Autumn olive)
Persicaria perfoliata (mile-a-minute)
Euonymus alatus (winged euonymus)
Phellodendron amurense (amur cork tree)
Euphorbia cyparissas (cypress spurge)
Populus alba (white cottonwood)
Fallopia baldschuanica (Chinese bindweed)
Robinia pseudoacacia (black locust)
Fallopia japonica (Japanese knotweed)
Rosa multiflora (multiflora rose)
Frangula alnus (glossy buckthorn)
Quick Facts

Businesses selling plants have until January 1, 2018 to sell any remaining plants.

The ban includes the listed species and all cultivars, varieties and hybrids.

Variances may be applied for and granted for scientific research
and for varieties, cultivars or hybrids that have been shown to not
be invasive through peer reviewed scientific research.

The invasive plant rule and included prohibited plant list will be
reviewed every 5 years.
F OR MORE INFORMATION :
M AINE D EPARTMENT OF A GRICULTURE ,
C ONSERVATION AND F ORESTRY
D IVISION OF A NIMAL AND P LANT H EALTH
28 S TATE H OUSE S TATION
A UGUSTA , ME 04333
207-287-3891
HORTICULTURE @ MAINE . GOV
WWW . MAINE . GOV / HORT
Invasive Terrestrial Plants
Prohibited From Sale In Maine
Widespread
Limited
Unknown
Distribution In Maine
Distribution In Maine
Distribution In Maine
Norway Maple (Acer platanoides)
Garlic Mustard (Alliaria petiolata)
Amur Maple (Acer ginnala)
Bishop’s Weed (Aegopodium podagraria)
Porcelain Berry (Ampelopsis glandulosa)
Japanese Barberry (Berberis thunbergii)
Asiatic Bittersweet (Celastrus orbiculatus)
Tree of Heaven (Ailanthus altissima)
False Indigo Bush (Amorpha fruticosa)
Chinese Bindweed (Fallopia badschuanica)
Autumn Olive (Elaeagnus umbellata)
Winged Euonymus (Euonymus alatus)
Common Mugwort (Artemisia vulgaris)
Common Barberry (Berberis vulgaris)
Japanese Stilt Grass (Microstegium vimineum)
Japanese Knotweed (Fallopia japonica)
Glossy Buckthorn (Frangula alnus)
Cypress Spurge (Euphorbia cyparissias)
Common Privet (Ligustrum vulgare)
Pawlownia (Paulownia tomentosa)
Dame’s Rocket (Hesperius matronalis)
Yellow Iris (Iris pseudacorus)
Japanese Honeysuckle (Lonicera japonica)
Amur or Bush Honeysuckle (Lonicera maackii)
Mile a Minute Weed (Persicaria perfoliata)
Morrow’s Honeysuckle (Lonicera morrowii)
Tatarian Honeysuckle (Lonicera tatarica)
White Cottonwood (Populus alba)
Ornamental Jewelweed (Impatiens glandulifera)
Amur Cork Tree (Phellodendron amurense)
Report Findings of These
Plants at:
www.imapinvasives.org
Find these invasive plant
pictures and more at:
Purple Loosestrife (Lythrum salicaria)
Black Locust (Robinia pseudoacacia)
Multiflora Rose (Rosa multiflora)
www.bugwood.org
For more information, please contact:
The Horticulture Program
(207) 287-3891
Email: [email protected]
www.maine.gov/hort