Erect or rarely decumbent perennial, with 1-several simple or much-branched stems from a woody rootstock, up to 2–27 dm. tall, but also flowering in the first year of growth.. Stems finely ribbed, densely covered with short appressed or crisped and slightly spreading hairs.. Leaves 3-foliolate; leaflets oblanceolate-elliptic to broadly elliptic or obovate-elliptic, up to 40–85 mm. long, 13–55 mm. wide, glabrous above, thinly appressed puberulous beneath, often glaucous; petiole 20–100 mm. long.. Stipules filiform or linear-caudate, 1–4 mm. long, caducous, or absent.. Racemes shortly pedunculate, up to 15–40 cm. long, with many flowers, crowded at least towards the top; bracts filiform, 3–7 mm. long, early caducous; bracteoles inserted at the base of the calyx, filiform or linear-caudate, up to 1–2 mm. long.. Calyx becoming basally truncate and deflexed against the pedicel, 5–7 mm. long, rather densely appressed pubescent; lobes narrow, acuminate, longer than the tube.. Standard elliptic, yellow, veined reddish, glabrous outside; wings little more than half as long as the keel; keel rather shallowly rounded, with a narrow rather projecting untwisted beak, (9–)11–14 mm. long, greenish-yellow, usually suffused with purple.. Pod shortly stipitate, subcylindrical, slightly expanded towards the apex, 28–35 mm. long, 8–9 mm. across, appressed puberulous, often glabrescent, ± 18–26-seeded.. Seeds oblique-cordiform, ± 4 mm. long, minutely papillose, greenish-brown.
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Leaves 3-foliolate; leaflets mostly 4–8.5 × 1.5–5.5 cm, oblanceolate-elliptic to broadly elliptic or obovate-elliptic, appressed puberulous beneath, often rather glaucous; petiole shorter to longer than the leaflets; stipules 1–4 mm long, filiform to linear-caudate, caducous, or lacking.
Erect or rarely decumbent perennial herb, with 1–several simple to much branched stems from a woody rootstock (but also flowering in first year of growth), up to 2.7 m tall; branches densely covered with short appressed or crisped hairs.
Flowers similar to C.pallida, but the standard and more particularly the keel often flushed purple; beak of the keel slightly more incurved.
Pod shortly stipitate, 2.8–3.5 × 0.6–0.9 cm, subcylindrical, appressed puberulous, often glabrescent, 18–28-seeded.
Seeds 3.5–4 mm long, oblique-cordiform, minutely papillose, greenish-brown or mottled.
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