Psoralea laevigata L.F.

A procumbent suffrutex up to 1 m tall and 2(3) m wide; resprouter, forming dense clumps. Stems ascending to erect, many, branching at or near the base. Seasonal shoots smooth, slippery, glabrous, shiny, green. Leaves 5(7)-foliolate, distributed along the branches, patent, petiolate; leaflets 7-15 x 0.4-0.6 mm, linear lanceolate, stiff, claw like, upper surface glabrous and shiny, lower surface glabrous, terminal leaflet shorter, basal pair longest, three uppermost digitately inserted; petioles 4 mm long, shorter than terminal leaflets; rachis 5-10 mm long; stipules 2-3 x 1.2-1.5 mm, persistent, subulate, linear, glabrous, shorter than the petiole. Inflorescences axillary, borne along the length of seasonal shoots without leafy extension, pseudo-spicate, lax, 1-3 flowers per axil, pedunculate, pedicellate; peduncles stout and rigid, 23-25 mm long, longer than the subtending leaf; cupulum bilobed, glabrous, near the apex, lobes unequally developed, one of the lobes scarcely developed, triangular; Flowers 10-12 mm long, deep purple; pedicels 2-4 mm long. Calyx 5-6 mm long, tube 2-4 x 3.5 mm, ribbed, purple towards the lobes, veins purplish; lobes equally developed, shorter than the calyx tube, glabrous, lobes narrowly triangular, acute, densely glandular. Standard petal 9-10 x 13-15 mm, very broadly ovate, purple with large deep purple nectar flash at the crotch above the well-developed appendages, veins darker than blade; claw 3-4 mm long. Wing petals 9-11 x 3-4 mm, same colour as the standard but white towards the base; claw 3-4 mm long. Keel 9-10 x 2-3 mm; whitish with purple patch on inner apex; claw 4-5 mm long. Androecium 9 mm long, tenth stamen free, fenestrate, nectarial ring present, 0.3 mm high. Pistil 9 mm long, ovary 1.5 mm long, stipitate, glabrous but sparsely covered near distal end in curved stalked glands, style 7 mm long straight, then curved upwards, thickened at point of flexure, height of curvature 2 mm, stigma penicillate. Fruits 4-5 x 2.5-3.0 mm, oblong. Seeds 2-4 x 2 mm, dark brown to black.