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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

Branchlet - A small branch.

Cactus/Succulent - A plant having leaves and/or stems which are thick and fleshy.

FACU* - Faculative Upland - Nonhydrophyte. Usually occurs in non-wetlands, but may occur in wetlands. Occurs only in the South Pacific Islands subregion.

Clasping - Leaf partially encircles the stem.

Threatened - An animal or plant species likely to become endangered within the foreseeable future throughout all or a significant portion of its range.

Sori - Cluster of sporangia in ferns and fungi.

Rhizome - A horizontal underground stem.

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

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

Areole - A spot in the form of a pit or a raised area on the surface of a cactus through which spines or other structures grow.

Pinnate - Arranged along an axis. Leaves may be pinnately compound (see below) and/or pinnately lobed; they may also have pinnate venation, with veins extending from the midrib.

Axillary - Growing from an axil.

Scape - A naked flower stem rising from the ground.

Calyx - The sepals taken collectively. These may be distinct, or joined to form a cup or tube; they may be of any color but are usually green. When the calyx is present, it encloses the other parts of the flower in bud.

Bisexual - A flower with both stamens and pistils.