basic plant morphology (definition)oregonstate.edu/instruct/bot101/patterson/lectures_05/...plant...
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Plant Morphology• Shoot System• winter twigs • leaf morphology
• Root System• root architecture• modified roots
Bot 101Botany: A Human Concern
Two IntegratedOrgan Systems
Basic Plant Morphology (definition) -
Shoot System
Root System
1.
2.
Root Systemtap, lateral, adventitious roots
• anchorage• storage
root hairs• elemental mineral uptake• water absorption
Shoot Systemleaves
• light, CO2 capture • (photosynthesis!)
stems• support• transport
flowers• sexual reproduction• pollinator attraction
Organ Systems: Function The Shoot Systemmodular construction
The Shoot SystemStems
• basic structure
winter twig
terminal bud
leaf scar
axillary bud
node
internode
lenticels
bud
scars ?
internode
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Modifications of Stem and Shoot
Stolon - above ground Rhizome - below ground
Tuber - storageBulb - storage
Modifications of Stem and Shoot
Modifications of Stem and Shoot The Shoot System• Leaves
• basic structure (morphology)
bladepetiole + = LEAF
midveinaxillary bud