Small to large robust shrub to 3 m tall, reseeder, colonial. Stems single, ascending to erect, blackish brown; branches stiffly erect. Seasonal shoots pale green to brownish purple, with rough scales, glabrous. Leaves 5-7-foliolate, patent, petiolate, distributed along the branches; leaflets 30-35 x 0.3-0.4 mm, linear lanceolate, glabrous, terminal leaflet shortest, basal pair longest, three uppermost digitately inserted; petioles 4-4.5 mm long; rachis 10-15 mm long; stipules 1-2 x 0.5-1 mm, persistent. inflorescences axillary, borne in uppermost axils of seasonal shoots, pseudo-spicate, lax, (2)3-6 flowers per axil, pedunculate, pedicellate; peduncles stout and rigid, 30-45 mm long; cupulum free from calyx, bilobed with one of the vexillar lobes variously bilabiate; pedicel 1-2 mm long. Flowers 12-14 mm long, mauve to purple, without scent. Calyx 5-6 mm long, tube 4-4.5 x 3.5 mm, glabrous; lobes sub-equally developed, shorter than the tube, lateral and vexillar lobes acute, carinal lobe cucullate (boat-shaped). Standard petal 10-12 x 8-9 mm, narrowly ovate, mauve; claw 3-4 mm long, nectar guide white with a deep purple flash. Wing petals 10-11 x 3.2-3.5 mm, strongly up-curving, sculpturing present, white; claw 3-4 mm long; Keel 10-10.5 x 2.5-3 mm; claw 3-4 mm long. Androecium 11 mm long, broadly fenestrate, upper part recurved. Pistil 10 mm long, ovary 3 mm long, glabrous but with many small stalked club-shaped glands on upper part; style filiform, 6 mm long straight to point of flexure, then upcurved, swollen at point of flexure, height of curvature 4 mm, stigma pedicellate, penicillate. Fruits 4-5 x 2.5-3.0 mm, narrowly oblong. Seeds 2-4 x 2 mm, dark brown to black.
Home