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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

Lanceolate - Having the shape of a spear-head or lance.

Zygote - A reproductive cell formed by the fusion of two gametes.

Axil - The upper angle between two structures or organs, as where a leaf or branch joins the stem.

Bilateral symmetry - Usually referencing flower structure, descripes a plant part or parts that may be divided along a single plane forming two mirror-image halves; zygomorphic, irregular flower.

FAC - Faculative - Hydrophyte. Occurs in wetlands and non-wetlands.

Tepals - Collective term for sepals and petals when sepals are petal-like, as in Cooperia pedunculata (rain lily).

Biennial - A plant that takes two years to complete the flowering cycle. Typically it grows vegetatively the first year and flowers and fruits during the second year before dying.

Caudate - Tapering gradually into a long taillike tip

Node - The place on a stem where leaves or branches normally originate; a swollen or knoblike structure.

Endangered - An animal or plant species in danger of extinction throughout all or a significant portion of its range.

Whorled - Three or more leaves or flowers arranged in a circle around a stem.

Trifoliate - Having three leaflets.

Asymmetric - Lacking symmetry, e.g., the two halves of a leaf blade not alike.

Complete flower - A flower with sepals, petals, stamens, and pistil present.

Stipules - Leaflike structures that grow where the leaf is attached to the stem.