维西马先蒿 wei xi ma xian hao

Herbs perennial, 20 cm tall, not drying black. Stems usually single, branched basally, pubescent, with 3 or 4 internodes. Leaves in whorls of 4, petiolate or distal leaves often sessile; petiole ca. 5 mm; leaf blade narrowly oblong to linear-oblong, 1--1.5 cm, abaxially whitish scurfy, adaxially pubescent, pinnatipartite to pinnatisect; segments 6--8 pairs, ovate, dentate, teeth callose. Inflorescence racemose; bracts leaflike. Calyx ca. 1 cm, 1/2 cleft anteriorly, whitish pubescent; lobes 5, unequal, posterior one smallest and entire, lateral lobes flabellate and serrate. Corolla yellow, ca. 1.6 cm; tube erect, slightly exceeding calyx; galea bent at a right angle distally, beak slightly S-shaped, ca. 8 mm, slender; lower lip ca. 1 X 1.5 cm, ciliate, middle lobe smaller than lateral pair, apex strongly hoodlike. Filaments densely pubescent. Fl. Jul, fr. Aug.

* Subalpine meadows on ridges; ca. 3600 m. NW Yunnan (Weixi).