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Structure of Woody Plants - Coggle Diagram
Structure of Woody Plants
Types of Wood
Reaction
Compression wood
Growth rings are wide and on lower side
Contains less cellulose
Enriched in lignin
Tension wood
Rich in cellulose
Little to no lignin
Gelatinous fibers
Prevents drooping
Rings eccentric and on upper side
Heartwood
Darker color
Storage
Usually older
Resistant to insects
Denser
Sapwood
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Lighter color
Transportation of water
Typically younger
Higher amounts of insects
Density is less
Cambia
Vascular Cambium
Interfascicular
Between vascular bundles
Xylem on the inside
Phloem on the outside
Fascicular
inside vascular bundles
Xylem on the inside
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Phloem on the outside
Only two types of cells
Fusiform initials
Axial Phloem
Axial xylem
Ray initials
Xylem rays
Phloem rays
periderm
Phellogen/Cork Cambium
Creates phellem/ cork on the outside
Creates Phelloderm on the inside
Growth
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Secondary
Outward
Unusual
Primary growth isn't the same
Vascular Cambia are more active in certain areas
Primary
vertical
Anomalous
Secondary growth that deviates from the norm
Vascular Cambia are more active in different regions
