Calyx densely white sericeous; tube 7–8 mm long; lobes 6–17 mm long, narrowly triangular, lower central lobe twice the length of the lateral lobes, upper pair fused for almost all of their length.
Flowers in terminal pseudoracemes; peduncle 11–17 cm long; rhachis 4–19 cm long; pedicels 4–20 mm long; bracts 5–6 mm long, filiform, caducous; bracteoles 6–18 mm long, filiform, caducous.
Ovary 10–12 mm long, linear-oblong, compressed, glabrous or sericeus; style 7–9 mm long; stigma minute, terminal, capitate, penicillate.
Pods 5.5–7.5 × 1.4–1.7 cm, oblong-oblanceolate, densely white or silver tomentose, 2–3-seeded.
Standard purple, 2.8–3 × 2 cm, subcircular; wings and keel purple.
Stems annual, angled, densely white, silver or gold pilose.
Erect herb 60–90 cm tall; rootstock unknown.
Mature seeds unknown.