Erect shrub, 0.9-1.6(-2.3) m high. Leaves 3-nate; erect-spreading, subimbricate; blade, 2-4 mm long, linear, subacute, sulcate, pubescent, ash-grey, ciliate, later glabrescent. Flowers solitary or in plumes along upper branches. Calyx sepals ovate-lanceolate, pubescent, ± 1/2 length of corolla. Corolla cyathiform, 1.0-1.6(-2.1) mm long, hairy or glabrous, greenish yellow. Filaments capillary; anthers included or manifest, subterminal, tapering to base, narrowly subobovate, smooth, ± 0.7 mm long, muticous; pore less than 1/2 length of theca; appendages absent. Ovary globose, pallid, mainly glabrous; style elongating, exserted or not; stigma large, cyathiform. Flowering time Aug.-Nov.