箭药兔耳草 jian yao tu er cao

Herbs, 12-22 cm tall. Lateral roots numerous. Rhizomes elongated. Stems 1, obliquely ascending, as long as leaves or slightly longer. Basal leaves 3 or 4; petiole 3-12 cm, base slightly expanded; leaf blade suborbicular, obovate, or ovate-oblong, 6-12 cm, papery when dry, margin broadly crenate, veins conspicuous. Stem leaves 2-5, short petiolate. Spikes nearly globose, at anthesis elongated to 7 cm; bracts narrowly lanceolate. Calyx at anthesis shorter than bracts, margin thin fimbriate, primary veins slightly exserted, forming 2 short points. Corolla whitish; tube straight, ca. 7 mm, slightly longer than calyx; lower lip lobes 2, narrowly lanceolate; upper lip unlobed, lanceolate to oblong. Anthers subsagittate, included. Stigma 2-lobed. Disc obliquely and shallowly cupular. Fl. Aug.

* Alpine grassland; 3700-4500 m. SE Xizang, Yunnan.