slender, diffuse, divaricate, unarmed (or rarely subspinescent); twigs puberulous; leaves short, tufted, terete or trigonous, pungent-mucronate, erect or squarrose, glabrous or nearly so; flowers racemulose or subsolitary, shortly pedunculate; calyx turbinate, puberulous, its teeth deltoid, or deltoideo-subulate, pungent, variable in length; the orbicular, thinly silky vexillum and the arched and rostrate, glabrous or silky carina longer than the alæ; ovary 2-ovuled; legume obliquely ovato-lanceolate, puberulous or glabrescent, 2–4 times as long as the calyx. A straggling or procumbent, rigid, but slender, much branched bush, with very spreading branches, rarely spiniferous. Leaves variable in length and direction, 1–2, rarely 3 lines long. Calyx teeth sometimes very short, sometimes equalling the tube, but variable on the same bush.
