Suffrutex up to 0.5 m tall, branching predominantly basal; branches annual, erect, sericeous; rootstock perennial, woody. Leaves exstipulate, 7-23 mm long, becoming smaller towards the branch apex; leaflets 3, narrowly elliptical to obovate, glabrescent; bases cuneate, apices rounded, apiculate. Inflorescence a terminal raceme, 10-50 mm long, sometimes subtended by small axillary racemes, minutely sericeous to glabrescent; bracts ovate, 1-3 x 1-2 mm, minutely sericeous to glabrescent. Flowers 2-25, evenly spaced. Calyx turbinate, 4-5 mm long, minutely sericeous to glabrescent externally, tube 3-4 mm long; lobes deltoid, 1-1.5 mm long, lower median lobe sometimes subulate. Corolla pale violet fading to white basally; vexillum lamina suborbicular, 4-5 x 5-6 mm, minutely sericeous externally, unguiculate; alae oblong, 3-5 x 2.5 mm, glabrous, with 15-19 rows of lamellate sculpturing, unguiculate; carina oblong curving upwards, 2.5-4 x 1.5-2 mm, glabrous, with lateral pockets, apex rounded, base unguiculate. Ovary 2-3 mm long, densely sericeous; ovules many; style filiform 4-5 mm long, arcuate; stigma terminal, truncate. Fruit ovoid, slightly compressed, 5-6 mm long, densely sericeous, 1-3-seeded.
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L. glabrescens can be distinguished from L. amajubica by the shorter calyx lobes and glabrescent leaves Future studies may show that L. glabrescens and L. amajubica are only subspecifically distinct.
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