A decumbent-procumbent or prostrate, low shrub with branches up to more than 0.5 m long, radiating from a common centre and forming mats or 'clusters', generally not reaching 0.3 m above the ground. Young branches with long, sparse, spreading hairs. Leaves ovate or elliptic, 11-28 x 7-18 mm, subglabrous, apex acuminate or spine-tipped, ± recurved; lower side with ±9 prominent longitudinal veins, and with distinct reticulate veins between these; margins followed by the peripheral veins, generally ± undulate, with sparse minute tubercles supporting long, patent hairs. Inflorescence unifloral or racemose with 2-4(-6) flowers dispersed on an inflorescence axis; below the lowest flower a ± peduncle-like internode up to ± 30 mm long. A rapidly developing branch in uppermost leaf axil soon pushing the inflorescence-bearing peduncle aside to a pseudo-lateral position. Bract linear-subfiliform, 4-9 x 0.3-0.5(-0.8) mm, weak, with sparse hairs from wart-like base. Pedicel 2.5-4 mm long, glabrous or with sparse hairs. Bracteoles 3-7 mm long. Calyx tube campanulate, 3.5-4 mm long, almost glabrous; lobes linear, tapering, 3-7 mm long, weak, with sparse spreading hairs on the margins. Petals light yellow or standard partly darkish. Standard blade broadly elliptic-obovate, 7-10.5 x 7-12 mm, rounded-retuse (but often with a short 'tip'), sericeous on most of the back. Wing blades narrowly elliptic-obovate, (5-)5.5-8 x (2.3-)2.6-3.9 mm, glabrous, with 6-7 rows of minute folds on basal half. Keel blades 6.5-8.5 x (3.3-)4-5 mm, obtuse(-subacute), glabrous; upper margins usually slightly concave. Pistil with elongate ovary hairy on upper and lower sutures; ovules 6-16; style upcurved. Pod broadly linear, 17-30 x 4.5-7.7 mm, ciliate above and below, smooth, several-seeded.
More
Sprawling or prostrate, mat-forming shrublet with branches > 50 cm. Leaves 1-foliolate, ovate-elliptic, pungent, ± 9-veined from base, ± reflexed, subglabrous. Flowers solitary or 2(-6) in raceme on distinct peduncle-like internode, pale yellow, wings and keel glabrous, calyx glabrous, lobes linear, tapering, weak, with margins sparsely hairy.