Perennial herb 7-30 cm tall with 1-10 stems from vertical underground rootstock or subsurface acutely branching rhizomes, clonal. Stems shortly erect or decumbent, villous with tawny hairs interspersed with short deflexed white hairs, or with scant tawny hairs only. Leaves trifoliolate, basal leaves always unifoliolate; leaflets variable, oblong, elliptic or oblanceolate, acute, mucronate, base cuneate or obtuse, 5.0-1.5(-5.5) cm long, 3-6(-8) cm wide; laterals asymmetrical with oblique bases smaller than symmetrical terminal leaflet, both surface green, finely pubescent with appressed hairs; young leaves densely glandular and shortly villous, pubescent between raised veins which are covered with longer appressed silver hairs. Stipules semi-connate, often splitting, 5-22 mm long, 3-10 mm wide, lanceolate, acuminate, striate, overall tawny outside with short white hairs on ridges, glabrous inside. Rachis 1.5-2.2(-3.0) mm long with two persistent acrorachial stipels up to 0.6 mm long. Racemes 7-28-flowered. peduncle long, rachis 3.0-7.5(-9.5) cm long. Flowers carmine or orange w ith yellow, (12-)16-17(-20) mm long, 6.5-8.0 mm wide, reflexed but hooded at apex, bract 7-9 mm long, 1.5-2.0 mm wide, lanceolate. Calyx (5-)6-7(-9) mm long, either equally lobed with fine w hite pubescence, or unequally lobed with long yellow hairs (with or without short white hairs interspersed) puberulous inside, glandular outside; tube 2.4-3.3(-4.0) mm long; lobes laceolate when unequal, triangular when equal, 5-10 mm long. Standard (12-)14-17(-19) mm long, 9.0-14.0(-7.5) mm wide, obovate to widely obovate, back tomentose, glandular; appendages form large upcurled flaps free of auricles. Wings orange, 11-17 mm long. 4-9 mm wide at maximum, longer than keel blades, eglandular. Keel blades 1.5-6.5 mm long. 5.5-9.0 mm wide at maximum, mostly eglandular. StaminaI sheath 11-16 mm long; free stamen 9-3.5 mm long. Gynoecium (10-)13-16 mm long; ovary 3.0-4.0(-6.5) mm long with 0.8-2.0 mm long gynophore, clothed with long stiff hairs to end of ovary; end of style inflexed; curvature of style 5-7 mm high; stigma slightly flattened on inner face, exserted beyond stamens. Nectary 0.4-0.6 mm high, margin repand. Fruit 19-23 mm long, 12-13 mm wide, oblique, softly tawny and interspersed with short white hairs and glands. Seed7.6-8.0 mm long, 4.0-4.5 mm wide, deep purple black with white aril.
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Perennial herb, 0.07-0.30 m high; 1-10 stems from vertical rootstock, shallow branching rhizomes; stems with scant tawny hairs. Leaves: basal leaves unifoliolate. Leaflets 50-110 mm long, shape very variable, oblong to oblanceolate, base cuneate to obtuse, apex mucronate to acute; margin ciliate, scantily spread hairs on both surfaces, veins hirsute. Flowers red-or orange-yellow. Calyx equal lobed with fine white pubescence or unequal lobed with long yellow hairs. Petals: wings orange, longer than keel; keel mostly eglandular. Flowering time Aug.-Dec. Pod softly tawny hairy with short white hairs interspersed with white glands. Seeds deep purple black.
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