Branching herb up to 40 cm. tall from a perennial rootstock; stems, inflorescences, stipules and leaf-rhachides ± densely strigose or pilose, the hairs often spreading at the tips.. Stipules rather scarious at the broad base, tapering to a setaceous tip, up to 8 mm. long; rhachis up to 25 mm. long, including a petiole of 1–5 mm., produced up to 5 mm. beyond lateral leaflets; leaflets 3–7, alternate, lanceolate-oblong, the terminal much larger than the lateral, up to 45 mm. long and 15 mm. wide, strigose on both surfaces.. Racemes diffusely strigose, up to 7 cm. long, including a peduncle of 1–2.5 cm.; bracts lanceolate, up to 4 mm. long, diffusely strigose, caducous; pedicels ± 1 mm. long, reflexed after flowering.. Calyx strigose, 4–6 mm. long, divided almost to the base into setaceous lobes, the lower much longer than the upper.. Corolla strigose-pubescent outside, very caducous.. Stamens 4–5 mm. long.. Pod straight, rather tetragonal, up to 15 mm. long, ± 2 mm. wide, 5–8-seeded.. Fig. 46/1–16, p. 316.
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