Psoralea peratica C.H.Stirt.

Large shrubs to small trees, 3-5 m tall, reseeder, may be colonial, but never forms dense clumps. Stems 1-3, erect, woody throughout, terete; branches flexuous, emerging at a height of about 1.0-1.5 m, arching. Seasonal shoots spreading or arching, densely pubescent; leaves absent in mature plants, seasonal shoots covered in scales. Scales 2.5-3.0 mm long, persistent, clasping, glabrescent, not tightly congested. Inflorescences borne in uppermost axils of bare seasonal shoots, pseudocapitate, congested, with 3-9 flowers per axil; pedicel below cupulum 2 mm long, stout and rigid; cupulum bilobed with one of the vexillar lobes variously bilabiate, hairy all over; cupulum lobes equally developed, glandular and narrowly triangular; pedicel above cupulum 5-8 mm long. Flowers 16-18 mm long, dark mauve, maturing sequentially. Calyx tube 3 mm long, sparsely covered in white hairs and shorter than the lobes; lobes more or less equal; lateral and vexillar calyx lobes acute, falcate and triangular; lower lobe 6-7 x 2.5-3.0 mm, acute, the same width as the other four lobes; vexillar calyx lobes fused for up to one third of their length above the tube; calyx shorter than corolla; inner face of calyx lobes densely covered in small black stubby hairs; ribs distinctly thickened; glands dense, constant in size and equally distributed across the calyx tube and lobes. Standard petal 14-16 x 12-18 mm, ovate-oblong; claw 4-6 mm long, elongated and narrow; auricles well-developed, large and swollen; apex rounded. Wing petals 14-18 x 5-7 mm, up-curving; claw 4-6 mm long; fused to, but longer than keel. Keel 12-15 x 3-4 mm; claw 6-7 mm long. Androecium 11-12 mm long, upper end curved inwards, 10th stamen lightly attached; fenestrate. Pistil 11 mm long, ovary 2 mm long, sparsely glandular near apex, style 7 mm long, swollen at point of flexure, length of curvature 4 mm, stipitate, penicillate. Fruits and seeds unknown.