Herbs, erect, to 1.5 m tall. Branches terete, sericeous. Stipules linear, minute. Leaves simple; petiole 2-3 mm; leaf blade oblanceolate to narrowly elliptic, 5-15 × 2-4 cm, thin, abaxially sericeous, adaxially glabrous, base cuneate, apex obtuse and mucronate. Racemes terminal or leaf-opposed, to 30 cm, 20-30-flowered; bracts linear, 1-2 mm. Bracteoles similar to bracts but shorter. Calyx 2-lipped, 1-1.5 cm, pubescent; lobes lanceolate-triangular, ± as long as tube. Corolla deep golden yellow; standard suborbicular to elliptic, 1.5-2 cm, base with 2 appendages, apex retuse; wings 1.5-1.8 cm; keel rounded through 90°, narrowed apically from middle and extended into a long twisted beak exserted beyond calyx. Ovary glabrous. Legume oblong, 4-6 × ca. 1.5 cm, 20-30-seeded; stipe ca. 5 mm. Fl. May-Sep, fr. Aug-Dec.
Moist habitats ranging from riverine scrub and grassland to evergreen forest on high mountains, disturbed habitats such as roadside verges and abandoned fields, on a range of soils-volcanic, clay and ultra-basic; at elevations to 3,300 metres
Can be grown by cuttings or seedlings. Seeds needs soaking.
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