太白山蒿 tai bai shan hao

Subshrubs or perennial herbs, 80-100 cm tall, gray pubescent. Middle stem leaves: petiole 2-3 cm; leaf blade suborbicular or broadly ovate, 10-14 × 8-12 cm, 2-pinnatisect; segments 4 or 5 pairs, elliptic or oblong, 5-6 × 2-3 cm; lobules (2 or)3 pairs, rachis narrowly winged, 1- or 2-serrate. Uppermost leaves and leaflike bracts 1- or 2-pinnatisect. Synflorescence a broad, much-branched panicle. Involucre ovoid-campanulate or broadly ovoid, 3-3.5(-4) mm in diam.; phyllaries puberulent, sometimes glabrescent. Marginal female florets 5-9. Disk florets 14-22, bisexual. Achenes obovoid. Fl. and fr. Aug-Nov.

● Slopes, forest margins, shrublands; middle to high elevations. S Shaanxi, NE Sichuan.