阿克塞蒿 a ke sai hao

Herbs or subshrubs, caespitose, 40 cm tall or more, with woody rootstock and branches, gray puberulent or sparsely puberulent or glabrescent, much branched. Leaves gland-dotted. Lower and middle stem leaves: petiole 1-2 cm; leaf blade ovate, 2-2.5 × 1.5-2 cm, 2(or 3)-pinnatisect; segments 3(or 4) pairs; lobules minute, elliptic or ovate, 3 or 4 pairs, 2-4 × 1-1.5 mm, occasionally with 1 or 2 teeth. Uppermost leaves and leaflike bracts 1- or 2-pinnatisect. Synflorescence a broad panicle. Capitula peduncle 5-15 mm, rarely less than 4 mm. Involucre hemispheric or globose, 5-8 mm in diam.; phyllaries white puberulent. Marginal female florets 6-11. Disk florets 12-18, bisexual. Achenes obovoid. Fl. and fr. Aug-Oct.

● Hills; 3100-3800 m. W Gansu.