Senna procumbens is a species of flowering plant in the family Fabaceae and is endemic to the Northern Territory in Australia. It is a herbaceous perennial or undershrub with pinnate leaves with two or three pairs of lance-shaped to narrowly elliptic leaflets, and groups of five to eight yellow flowers arranged in upper leaf axils.
Description Senna procumbens is a prostrate or low-lying, mostly glabrous, herbaceous perennial or undershrub. Its leaves are pinnate, long including a petiole long, with five to eight pairs of lance-shaped to narrowly elliptic leaflets, long and wide, spaced apart. There are hair-like glands between each pair of leaflets. The flowers are yellow and arranged in groups of five to eight in upper leaf axils on a peduncle long, each flower on a pedicel long. The petals are long and there are ten fertile stamens, the anthers of differing lengths between long. Flowering occurs from January to June, and the fruit is a flat pod long and about wide.
Taxonomy Senna procumbens was first formally described in 1989 by Barbara Rae Randell in the Journal of the Adelaide Botanic Garden. The specific epithet (procumbens) means "procumbent".
Distribution and habitat Senna procumbens grows among tall grasses in swamps or in forest or woodland in sandy soil. It is only known from the Pine Creek area of the Northern Territory.
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