Morphology Glossary

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  2. Tree Identification
  3. Morphology Glossary
  4. Leaf Morphology: Arrangement

LEAVES | Complexity | Arrangement | Shape | Venation | Apices | Bases | Margins | Lobes

TWIGS | Bud Types | Bud Scales | Scars | Surface | Pith

FRUITS | Types

Leaf Morphology: Arrangement

how leaves are positioned relative to one another on the twig

Alternate only a single leaf is attached at each node
Opposite two leaves are paired at the same height, one on each side of the twig
Whorled more than two leaves are found at the same node

Hold cursor over photos to view species name and info

Alternate

only a single leaf is attached at each node

Opposite

two leaves are paired at the same height, one on each side of the twig

Whorled

more than two leaves are found at the same node

All definitions are from J. W. Hardin, D. J. Leopold, and F. M. White. (2001). Harlow & Harrar's Textbook of Dendrology. Ninth edition. McGraw Hill, New York, New York, 534 pp. ISBN: 0073661716.

LEAVES | Complexity | Arrangement | Shape | Venation | Apices | Bases | Margins | Lobes

TWIGS | Bud Types | Bud Scales | Scars | Surface | Pith

FRUITS | Types