Senna venusta

Senna venusta is an erect shrub that typically grows to a height of up to 2 m (6 ft 7 in), with soft hairs on vegetative parts but mostly otherwise glabrous. Its leaves are pinnate, 100–350 mm (3.9–13.8 in) long on a petiole 10–30 mm (0.39–1.18 in) long, with 6 to 15 pairs of oblong to egg-shaped leaflets 30–80 mm (1.2–3.1 in) long and 10–35 mm (0.39–1.38 in) wide, spaced 15–30 mm (0.59–1.18 in) apart. The flowers are yellow and densely arranged in cone-like heads of 15 to 40 in upper leaf axils and ends of branchlets on a peduncle 40–80 mm (1.6–3.1 in) long, each flower on a pedicel 12–15 mm (0.47–0.59 in) long. The petals are about 15 mm (0.59 in) long and there are seven fertile stamens and three staminodes in each flower, the anthers of two different lengths. Flowering occurs from February to September, and the fruit is a flat pod 40–80 mm (1.6–3.1 in) long and 9–14 mm (0.35–0.55 in) wide.

Senna venusta grows in sand on gravel or in lateritic soils, often with Triodia species, and is widespread in arid areas of northern Western Australia and the Northern Territory, with a few collections in north-western Queensland.