Morphology Glossary

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

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

FRUITS | Types

Leaf Morphology: Margins

the edge of a leaf blade

Revolute rolled under, but only at the margin
Entire smooth
Repand slightly and irregularly wavy
Sinuate shallowly indented, wavy in a horizontal plane
Undulate wavy in a vertical plane, also called crisped
Crenate with rounded or blunt teeth
Crenulate small crenations, or small teeth on rounded protrusions
Serrate sharp teeth pointing towards the apex of the blade
Serrulate small serrations
Doubly Serrate larger serrations are again serrated on their margins
Dentate sharp teeth pointing outward
Denticulate small dentations
Aculeate spiny margined with the teeth long and prickly

Hold cursor over photos to view species name and info

Revolute

rolled under, but only at the margin

Entire

smooth

Repand

slightly and irregularly wavy

Sinuate

shallowly indented, wavy in a horizontal plane

Undulate

wavy in a vertical plane, also called crisped

Crenate

with rounded or blunt teeth

Crenulate

small crenations, or small teeth on rounded protrusions

Serrate

sharp teeth pointing towards the apex of the blade

Serrulate

small serrations

Doubly Serrate

larger serrations are again serrated on their margins

Dentate

sharp teeth pointing outward

Denticulate

small dentations

Aculeate

spiny margined with the teeth long and prickly

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