Geniosporum parviflorum Bentham, Pl. Asiat. Rar. 2: 18. 1830; Mesona wallichiana Bentham.

Herbs erect. Stems to 35 cm tall, unbranched, fine bristly, glabrescent. Petiole 2-5 mm; leaf blade narrowly elliptic to ovate-lanceolate, 2-3.5 × to 1.5 cm, fine bristly, base attenuate, margin serrate, apex short acuminate. Verticillasters in terminal pedunculate racemes 6-10 cm; peduncle 1.5-2.5 cm; bracts sessile, ovate, apex caudate-acuminate. Fruiting pedicels subequal to calyx. Fruiting calyx 4-5 mm, veins finely bristly or subglabrous declinate; upper lip 3-lobed, middle lobe very dilated, apex acute; lower lip entire, apex truncate. Nutlets unknown.

Yunnan [India].