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Having no stalk. Flowers having no stem and appearing directly from the base. Leaves having no petioles.

A flower that has the usual number of petals, ie, not double.

Refers to the alternate arrangement of leaves, stems, buds or flowers on each side of the stem, rather than growing in pairs. See Opposite.

A member of the succulent plant family, particularly adapted to arid and extremely hot environments, and characterised by spines. Often flowers at night.

A ring or whorl of sepals, which may be coloured and petal-like or green. Helps to protect the flower in bud.

A usually dense, often drooping, cluster of reduced, stalkless, unisexual, apetalous flowers that can be found on willows, birches and oaks.

See Corymb. Part of the flowers grow from the same point, but are arranged vertically in a single plane.

A group of tightly clustered flower buds forming a head, as found in the cabbage family (cauliflower, broccoli).

Fringed. Having fringed edges, as in a stigma. Fimbriate flowers have petals with divided or split edges.

Of leguminous flowers, the two lower petals that are fused together to form a keel around the stamens and styles.