Smooth Rattlebox - Pale Rattlebox - Streaked Rattlebox
Pale Crotalaria - Running Rattlebox
Crotalaria pallida (Aiton) Var. C. obovata (G. Don) Polhill
Fabaceae (Bean) Family

The plant is an upright or prostrate herb with trifoliolate leaves. Its preferred habitat is roadsides, fields, and waste places. Distribution is throughout the Escambia region.

The leaves are trifoliolate, no teeth, or may have scattered teeth on the upper portion of the blade, widest beyond the middle. The mid-vein is prominent, no lobes. The color is pale green.

The flowers are bracted racemes, at terminal or axillary. The calyx has five unequal lobes. The standard is large, heart-shaped. The keel is scythe-shaped, 10 stamens and the filaments are fused. The color is lemon-yellow. Flowers occur in the summer.

Fruit is legume.

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