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Glossary of commonly used botanical terms and their definitions. Use the search bar below to look up a botanical term.

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15 Random Botanical Terms

Diurnal - Open during the day and closed at night.

Compound - A leaf divided into two or more leaflets.

Petal - Unit of the corolla.

Frond - The leaf of a fern.

OBL* - Obligate - Hydrophyte. Almost always occurs in wetlands. Occurs only in the South Pacific Islands subregion.

Weed - Any plant growing where it is not wanted.

Laciniate - Fringed or having edges irregularly and finely slashed.

Parallel - A leaf whose veins run in parallel from the stem.

Ray - The outer irregular flowers in the heads of many Compositae (Sunflower Family). Each has a single, tongue-shaped corolla.

Axillary - Growing from an axil.

Bisexual - A flower with both stamens and pistils.

Tendril - A slender coiling or twining structure modified from a leaf, branch, or other organ.

Annual - A species that grows from seed, flowers, fruits and dies within one year's time. See also, Winter Annual.

Vine - Plants that climb by twining, tendrils, or clinging.

Oval - Having the general form, shape, or outline of an egg; egg-shaped.