Lepidagathis hyalina Nees.

Herbs 30-100 cm tall, base often conspicuously woody, often ± anisophyllous. Stems 4-angled, sulcate, pubescent or soon glabrescent. Petiole 0.5-3.5 cm; leaf blade ovate to elliptic to narrowly elliptic, 2.5-11 × 1-4.5 cm, 1.7-4.5 × as long as wide, both surfaces pubescent but soon glabrescent with few trichomes or sparsely pubescent along veins, secondary veins (4-)7-9 on each side of midvein, base cuneate and conspicuously decurrent onto petiole, margin entire and slightly sinuate, apex acute to shortly acuminate. Spikes elongate, (0.5-)1-3.8 cm, secund; bracts oblong-lanceolate, 6-10 × 1.5-2 mm, abaxially and marginally pubescent with gland-tipped (sometimes absent) and non-glandular trichomes, 1-veined, apex long acuminate; bracteoles similar to bracts except usually smaller. Calyx 8-10 mm, pubescent with gland-tipped (sometimes absent) and non-glandular trichomes or glabrescent; posterior lobe oblong-lanceolate, 8-9 × 1.5-1.7 mm, 3-veined; lateral lobes lanceolate, 6-7.5 × 0.7-0.8 mm; anterior lobes connate at base for 30%-55% of their length, distinct segments lanceolate and 4.8-6 mm. Corolla white streaked with purple, 8-10 mm, outside sparsely pubescent; lower lip 2.5-3 mm, lobes 1.5-3 × 1.3-1.8 mm. Stamens not seen. Ovary not seen; style not seen; stigma not seen. Capsule 5-6 mm, distally pubescent. Seeds subcircular in outline, 1.5-1.8 mm in diam. Fl. and fr. Oct-Mar. 2n = 20, 44, 84.

This species is used medicinally.

Grasslands, thickets, roadsides, hedgerows, streamsides; 100-2200 m. Guangdong, Guangxi, Hainan, Yunnan [Bangladesh, India, Myanmar, Thailand, Vietnam].