Lebeckia plukenetiana E.Mey.

Decumbent, glabrous suffrutex, up to 0.4 m in height. Leaves phyllodinous, acicular, unarticulated; leaf density 4 to 11 per 10 mm length of stem; stipules absent. Inflorescences terminal, 40-200 mm long; rachis±furrowed; flowers numerous (up to 36 (52) flowers per inflorescence), sparse (2 to 4 per 10 mm length of rachis), relatively small (5-8 mm long); pedicel 1-5 mm long. Bract narrowly lanceolate, acuminate, 1-4 mm long. Bracteoles narrowly triangular, acuminate, 1.0-1.7 mm long. Calyx 3-5 mm long, tube 1.5-3.0 mm long, lobes 0.5-2.0 mm long; subequally lobed but the upper lateral sinuses much wider than the medial sinus and lower lateral sinuses; lobes deltoid, tips minutely pubescent inside. Standard ovate, 6-8 x 4.5-7.0 mm; apex obtuse; claw 1.2-2.3 mm long. Wings oblong, invariably longer than the keel, 7.0-9.5 x 2.0-3.5 mm, with 6-9 rows of sculpturing; apex obtuse; claws 1.5-2.3 mm long. Keel rostrate, not twisted, 5.0-7.5 x 2.5-3.5 mm, always with pockets; claws 2.0-2.5 mm long. Carpel subsessile; ovary 3.0-5.5 x 0.6-0.9 mm, linear; ovules few to many (7 to 17); style 3.0-4.5 mm long, curved upwards. Pods narrowly oblong to oblong, straight or falcate, invariably narrowly winged on the upper suture, up to 40 x ±2 mm; stipe 2-4 mm long; dehiscent; flat; fruit wall thin, membranous. Seeds oblong-reniform, 2.6 x 2.0 mm, rugose, light brown to reddish brown, mottled dark brown; hilum dark brown to black.