Glossary: Leaf morphology

Purdue Arboretum botanical terminology reference and learning database.

368 Botanical Definitions 10 Categories A–Z Alphabetical Index Illustrated Growth Forms
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Leaf morphology

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Illustrated Growth Forms & Tree Silhouettes

Compare visual architectures: fastigiate, columnar, weeping, spreading, and more.

Fastigiate Columnar Pendulous / Weeping
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Letter: C Showing definitions beginning with this letter.
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Synonyms: Cordates, heart shaped, heart-shaped

Cordate Having a heart-shaped outline. Botanists use this feature to describe leaf shape, surface, edge, or arrangement, which helps with plant identification. Did you know? Redbud leaves are a familiar example of cordate leaves, with a heart-shaped outline.

Synonyms: Cotyledons

Cotyledon A seed leaf. (a leaf which is part of a seed) Did you know? The number of cotyledons separates monocots from dicots — one seed leaf versus two seed leaves.

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