西藏菊蒿 xi zang ju hao

Herbs, perennial or rarely annual, 40-60(-70) cm tall, from woody rootstock; stems sulcate. Basal and lower stem leaves petiolate; leaf blade linear-oblong, 1-9(-13) cm including petiole, 2-pinnatisect, both surfaces silky tomentose; ultimate segments linear, acute. Synflorescence a flat-topped cyme. Capitula 6-10(-12), homogamous, discoid; peduncle 1.5-3 cm. Involucre 2-3(-4) mm; phyllaries in 4 rows, abaxially softly tomentose, lanate, or pubescent, margin membranous. Receptacle convex, rarely flat. All florets yellow; corolla tubular, 2-4 mm, 5-toothed. Achenes light brown, 1-1.5(-3) mm. Corona glandular, entire.

Rocky talus, around lakes, grassy ridges, valley plains; 2000-4000 m. W Xizang [N India (Himachal Pradesh), Pakistan].