红足蒿 hong zu hao

Artemisia mongolica (Fischer ex Besser) Nakai var. parviflora (Besser) Kitagawa; A. mongolica var. pseudovulgaris Pampanini; A. nipponica Pampanini var. rubripes (Nakai) Pampanini; A. venusta Pampanini; A. vulgaris Linnaeus var. maximowiczii Nakai, p.p.; A. vulgaris var. parviflora Besser.

Herbs, perennial, 75-180 cm tall, puberulent or glabrescent. Lowermost and middle stem leaves: petiole 5-10 mm or more; leaf blade abaxially densely gray arachnoid tomentose, adaxially ± glabrous. Lowermost leaves suborbicular, 2-pinnatisect. Middle stem leaves ovate, elliptic-ovate, or broadly ovate, 7-13 × 4-10 cm, (1 or)2-pinnatisect; segments 3 or 4 pairs, lanceolate, linear-lanceolate, or linear, 20-40 × 2-6(-10) cm; lobules 2 or 3 pairs, serrate. Uppermost leaves pinnatisect; leaflike bracts 3-5-sect. Capitula closely spaced along branches in ± broad panicles, ellipsoid-ovoid or oblong-ovoid, 1-1.5(-2) mm in diam. Phyllaries arachnoid puberulent or ± glabrescent. Marginal female florets 9-10. Disk florets 12-14, bisexual. Achenes narrowly ovoid. Fl. and fr. Aug-Oct.

Waste areas, grassy slopes, forest steppes, shrublands, roadsides, riverbanks, meadows, forests; low elevations to 1200 m. Anhui, N Fujian, Hebei, Heilongjiang, Jiangsu, N Jiangxi, Jilin, Liaoning, E Nei Mongol, Shandong, Shanxi, Sichuan, Zhejiang [Japan, Korea, Mongolia, Russia].