Basic Plant Morphology (definition) Bot 101
Botany: A Human Concern
Plant Morphology
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•
•
Shoot System
winter twigs
leaf morphology
•
•
•
Root System
root architecture
modified roots
Organ Systems: Function
Root System
Shoot System
leaves
• light, CO2 capture
• (photosynthesis!)
stems
• support
• transport
flowers
• sexual reproduction
• pollinator attraction
Shoot System
1.
Two Integrated
Organ Systems
2.
Root System
The Shoot System
modular construction
tap, lateral,
adventitious roots
• anchorage
• storage
root hairs
• elemental
mineral uptake
• water
absorption
The Shoot System
Stems
axillary bud
• basic structure
terminal bud
internode
leaf scar
internode
node
bud s
r
sca
lenticels
winter twig
?
1
Modifications of Stem and Shoot
Stolon - above ground
Bulb - storage
Modifications of Stem and Shoot
Rhizome - below ground
Tuber - storage
Modifications of Stem and Shoot
The Shoot System
• Leaves
• basic structure (morphology)
midvein
axillary bud
petiole
+
blade
=
LEAF
2