Citation: Poiret, Encycl. 7:130 (1806) var. cannabina.

Synonymy: Aeschynomene cannabina Retz., Obs. Bot. 5:26 (1789); S. aculeata sensu J. Black, Fl .S. Aust. 466 (1948), non (Schreber) Poiret.

Common name: Yellow pea-bush.

Description:
Erect slender annual, 1-3 m high, glabrescent; leaves on a sometimes minutely prickly rhachis 2-17 cm long; leaflets 12-45 pairs, narrow-oblong, 7-20 x 1.3-4 mm, with sparse hairs mainly confined to the central vein; stipels subulate, to 1 mm long.

Flowers 10-16 mm long, on slender pedicels slightly longer or shorter than the calyx, in short racemes commonly 1-4-flowered rarely 6; peduncle 5-40 mm long, more or less hairy at the base, glabrous or glabrescent above; bract linear-lanceolate, to 0.5 mm long, deciduous; bracteoles similar; calyx campanulate, 3-4 mm long, glabrous except for the deltoid lobes which are less than half as long as the tube and have hairy margins; petals yellow or orange-yellow; standard depressed-ovate, retuse, 8-11 x 11-15 mm, on a c. 3 mm claw, with calli of thin vertical folds decurrent on the claw but broadened above and with obtuse or truncate upper angles, striate or sometimes purple-dotted; wings obovate, about as long as the standard; keel ovate-triangular, with a vertical limb, shorter than the wings, venation parallel and lacking anastomoses; ovary and style glabrous.

Pod very slender, 12-20 x 0.25-0.3 cm, curved or almost straight, beaked, slightly compressed, erect rarely spreading, 20-35-seeded; seed oblong-ovate, 3-4 x c. 2 mm, dark-brown, sometimes mottled, smooth.

Published illustration: Burbidge (1965) Aust. J. Bot. 13:fig. 6, t. 2c & t. 3a.

Distribution:    W.Aust.; N.T.; Qld; N.S.W. Flowers: March-May. Conservation status: native Flowering time: No flowering time is available

SA Distribution Map based on current data relating to specimens held in the State Herbarium of South Australia

Biology: The number of flowers per raceme and the amount of the indumentum on the leaves varies, and the petiole base may be pubescent on all sides or only on the adaxial face. This variation is due in part to the environment of the plant.

Author: Not yet available