Posterior sepal 4 mm. long, keel-shaped; wing sepals 7–8 x 6.5–7 mm. (up to 9 x 8 mm. in Angolan material), broadly obovate to suborbicular; anterior sepals 3–4 mm. long, free, keel-shaped.
Leaves 2–6 x 0.2–1.2 cm., linear or linear-lanceolate to very narrowly elliptic becoming broader towards the base of the stem, crisped-pubescent.
Upper petals 5–6 x 1–2 mm., ligulate, curved almost at right angles; carina 7–8 mm. long, crest 3–4 mm. long.
Seeds 3 x 1 mm., cylindric, with long, white, silky hairs; caruncular appendages scarcely developed.
Stems with short, crisped pubescence interspersed with longer patent hairs.
Capsule 5–6 x 3–4 mm., obovate in outline, ciliate on the margin.
Annual 1–1.5 m. tall.
Stamens 8.