汉姆氏马先蒿 han mu shi ma xian hao

Herbs perennial, ca. 45 cm tall, glabrous. Stems erect or ± ascending. Leaves few; basal leaves withering early. Stem leaves alternate; petiole 1.5--3 cm; leaf blade ovate-oblong, 6--8 cm, abaxially scurfy, adaxially glabrous, pinnatipartite to pinnatisect; segments 5--8 pairs, oblong, margin double dentate. Inflorescences racemose, lax; bracts leaflike. Pedicel ca. 3 mm. Calyx narrowly campanulate, ca. 4.5 X 2.25 mm, membranous, slightly cleft anteriorly; lobes 5, unequal. Corolla purplish red; tube erect, 5--6 mm, ca. 2 X as long as calyx tube, expanded apically; galea bent at a right angle apically, with auriculate protuberance on each side of margin; beak straight or sometimes decurved, ca. 4 mm; lower lip ca. 7 X 7.5 mm, not ciliate. 2 filaments pubescent, 2 glabrous.

* 2900--4000 m. W Sichuan.