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Standard elliptic or elliptic-oblong, violet-blue inside, lined bluish-brown and at least sparsely pubescent outside; wings somewhat shorter than the keel; keel 0.8–1.1 cm long, angular, sharply bent in the lower part with a long beak, often slightly incurved towards the tip, often thinly pubescent at least towards the base.
Racemes terminal on the main and relatively short lateral branches, the latter subtended by reduced leaves, thus forming a pseudopanicle, lax, with few to numerous flowers; bracts 1.5–2 mm long, linear-subulate or linear-lanceolate; bracteoles inserted on the lower half of the pedicel, smaller.
Erect annual herb, often with several stems from the base, up to 0.5–1.5 m tall; stems 3–4-angled, strongly ribbed to slightly winged, pubescent, sometimes soon glabrescent.
Calyx 4.5–6 mm long, glabrous to finely appressed pubescent; lobes subulate to narrowly triangular-acuminate, as long as or longer than the tube.
Pod shortly stipitate, 18–22 × 6–8 mm, oblong-ellipsoid or cylindrical, glabrous to finely appressed pubescent, 12–16-seeded.
Seeds up to 4 mm long, oblong-cordiform, smooth, glossy.
