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Calyx 5–6(7) mm long, with long, brown, ascending to spreading villous hairs, the tube 2–2.5 mm long, equalling or exceeding the lateral teeth; upper teeth joined for ?–? the length.
Perennial with a vertical woody basal stock and herbaceous, robust, rather sparingly branched, erect stems up to 1.4 m high, or an annual up to 1 m with a taproot.
Petals pink to pale purplish or bluish, the keel very pale, the standard brown pubescent outside; standard 13–18 mm long, the other petals somewhat shorter.
Pods 55–70(90) × 4.5–5.5 mm, rather thinly covered with long appressed hairs overlying much shorter appressed hairs, ± straw-coloured.
Stems conspicuously covered with long, spreading, often geniculate brown hairs 1–2.5 mm long or with greyish-white appressed hairs.
Flowers in mostly terminal racemes (8)12–26(32) cm long; bracts 3–6 × 0.2–0.6 mm, ± linear; pedicels 3–4 (6 in fruit) mm long.
Ovary appressed-pubescent; style pubescent.
Stamen tube joined above.
Seeds (13)14–17(19).
