蓍状亚菊 shi zhuang ya ju

Artemisia achilleoides Turczaninow, Bull. Soc. Imp. Naturalistes Moscou 5: 195. 1832; Chrysanthemum achilleoides (Turczaninow) Handel-Mazzetti; Tanacetum achilleoides (Turczaninow) Candolle.

Subshrubs, 10-20 cm tall. Old branches short. Flowering branches appressed pubescent, especially in upper part. Middle stem leaves: petiole 2-3 mm; leaf blade ovate or cuneate, 1-1.5 × 0.5-1 cm, both surfaces white or gray-white, densely appressed pubescent, 2-pinnatisect; primary lateral segments 2-paired; ultimate segments linear or linear-elliptic. Proximal and distal leaves gradually smaller. Synflorescence a terminal flat-topped panicle, ca. 2 cm in diam. Capitula few to many. Involucres campanulate, ca. 3 mm in diam.; phyllaries in 4 rows, glossy, straw-colored, scarious margin hyaline, apex obtuse or rounded, outer ones elliptic-lanceolate, ca. 2 mm, abaxially puberulent, middle and inner ones ovate to lanceolate, ca. 2.5 mm, middle ones puberulent abaxially, inner ones glabrous abaxially. Florets yellow, exterior with sessile glands; marginal female florets 6, corolla narrowly tubular, ca. 2 mm, apex acutely 4-denticulate; disk florets: corolla tubular, ca. 2.2 mm. Achenes ca. 1 mm. Fl. and fr. Aug-Sep.

Desert steppes, steppes; ca. 200 m. Nei Mongol [Mongolia].