Erect subshrubby perennial herb ± 0·9 m. tall.. Stems somewhat angular, pubescent and glandular.. Leaves alternate; leaflets 3, lanceolate, 6·4–11·3 cm. long, 1·5–3·2 cm. wide, tapering to a very narrow point at the apex, rounded at the base, shortly pubescent on both surfaces; venation raised beneath, closely reticulate; petiole 2·5–3 cm. long; rhachis 2–3 mm. long; petiolules 3–4 mm. long; stipules deciduous.. Racemes terminal and axillary; rhachis ± 7 cm. long; peduncle 3 cm. long; pedicels 5–7 mm. long; bracts deciduous, oblong-lanceolate, 4 mm. long; bracteoles deciduous, linear, ± 2·5 mm. long.. Calyx pubescent and glandular; tube 5–7 mm. long; lobes lanceolate, falcate, 7–11 mm. long, the upper pair united for just over half their length.. Standard mauve with green centre inside, oblate, 2 cm. long, 2·4 cm. wide, emarginate, reflexed at a right-angle; wings mauve, green at the base; keel greenish.. Pod not known.
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