Argyrolobium campicola Harms

Herbaceous perennial, 80-280 mm tall, erect or decumbent; stems pilose. Roots ligneous, perennial. Leaves pilose on both surfaces; leaflets 8-24 x 3.5-9 mm, obovate to elliptic; apex acute to rounded, mucronate; petiole pilose, 2-5 mm long; stipules foliaceous, connate in the lower half, 6-20 x 2-8 mm. Inflorescence 1-flowered, initially terminal but becoming leaf-opposed; peduncle 30-65 mm long; bracts linear or setaceous 3-9 x 0.25-2 mm; bracteoles linear or setaceous 1-5 x 0.25-1 mm. Calyx pilose, deeply bilabiate; upper lobes 8.5-11 mm long, upper sinus 6-9 mm; lower lip 9-11 mm long, lobes 3-4 mm long. Corolla bright yellow fading to russet; standard suborbicular, 11-16 x 8.5-14 mm, adaxial surface sparingly sericeous, base cordate; claw 1-2 mm long; wings oblong to obovate, 8-11 x 3.5-4 mm, sparingly sericeous; claw 1-2 mm long, with vestigial sculpturing; keel cymbiform, 8-10 x 4-5 mm, sometimes sparingly sericeous along the lower suture; claw 1-2 mm long. Stamens monadelphous, sheath fused adaxially. Pistil narrowly oblong; ovary 4-5 mm long; style 3-4 mm long. Fruit sparsely pilose, 30-55 x 3.5-4 mm. Seeds suborbicular, laterally compressed, 1.75-2.5 mm, light to dark brown.