Description from Flora of China
Didymocarpus neurophyllus Collet & Hemsley, J. Linn. Soc., Bot. 28: 102. 1891.
Herbs. Stemless or stems to 10 cm, pannose, glabrescent. Leaves basal or crowded near stem apex; petiole 0.5-4.5 cm; leaf blade oblanceolate to obovate, (2.5-)6-12 X 1.5-7 cm, thick papery, adaxially woolly, glabrescent, abaxially densely woolly to pannose, base narrowly cuneate, ultimately rounded, margin crenate, involute, apex rounded to acute; lateral veins 5 or 6 on each side of midrib. Cymes axillary; peduncle 6.5-13 cm, woolly, glabrescent; bracts 2, ovate to elliptic, ca. 1.5 X 0.5 mm, outside woolly. Pedicel 5-10 mm. Calyx 5-sect from base; segments linear to lanceolate, 2-5 X 0.5-1 mm, outside sparsely woolly. Corolla bluish, 1-1.2 cm, outside glabrous; tube 5-6 mm; adaxial lip 0.5-2 mm, lobes 0.5-2 X ca. 4 mm; abaxial lip 3-5 mm, lobes 2-3 X 3-3.5 mm. Filaments ca. 3 mm, glabrous; anthers 3-3.5 mm; staminodes 1-2, ca. 2 mm. Pistil glabrous; ovary 3.5-5 mm. Style 5-6 mm. Capsule spirally twisted, 1.5-2.5 cm, glabrous. Fl. May-Aug, Jan, fr. Jun-Sep.
Limestone, shady places near roads; ca. 2100 m. C Yunnan [N Myanmar].