Calyx 2–3 mm long, strigulose-puberulous, densely so on the tube, less densely on the lobe surfaces but very densely in a fringe on the lobe margins; upper lobes obliquely triangular-lanceolate, curved on the upper side, 2–3 times as long as the tube.
Erect annual 10–30 cm tall, sometimes with a few weak branches from the base, with numerous mostly suppressed flowering branches above; stem densely covered with short stiff appressed to slightly spreading hairs.
Flowers in clusters or short racemes, terminal and on much reduced 1–2 leaved branches in the axils below, also in the axils below that; bracts 0.5–1 mm long, linear; pedicel 1.5–3 mm long, without bracteoles.
Standard elliptic-obovate, yellow lined reddish-brown, tomentellous outside; wings ± as long as the keel; keel 4–5 mm long, angular, with a twisted beak.
Pod sessile, 3.5–4 mm long, ovoid-globose, appressed puberulous, 2-seeded.
Seeds 1.5–2 mm long, oblique-cordiform, smooth.