Arboretum Botanical Glossary

A botanical reference guide of morphological terms, plant structures, propagation techniques, and campus flora definitions.

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

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Explore terms organized by botanical structure, morphology, and arboricultural concepts.

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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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Synonyms: Nuts

Nut A dry, 1-celled, 1-seeded fruit that does not split open on its own, having a hard and bony shell, sometimes with a fibrous or slightly fleshy outer covering. Did you know? Peanuts are legumes and almonds are seeds inside drupes; true botanical nuts include acorns, hazelnuts, and chestnuts.

Synonyms: often on very poor soils

often on very poor soil A type of small green plant, sometimes only 1/16 (2 mm.) and mostly less than 2" (5 cm.) high. Mosses have tiny stems and leaves and reproduce by means of spores instead of seeds. They grow in moist locations

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