疏齿亚菊 shu chi ya ju

Chrysanthemum remotipinnum Handel-Mazzetti, Acta Horti Gothob. 12: 265. 1938.

Herbs, perennial, 30-70 cm tall, with slender fibrous roots. Stems erect, much branched, densely or sparsely pubescent. Middle stem leaves: petiole 1-2 cm; leaf blade elliptic, ovate, or obovate, 3.5-5 × 2-3.5(-4) cm, abaxially gray-white, densely and thickly appressed villous, adaxially green, sparsely appressed pubescent, 2-pinnatisect; primary lateral segments 1- or 2-paired, remote, at ca. 1 cm intervals; ultimate segments narrowly elliptic or falcate. Lower and upper stem leaves gradually smaller. Synflorescence a terminal, rather large, compound flat-topped panicle, 3-5 cm in diam. Involucres campanulate, 2.5-3.5 mm in diam.; phyllaries in 4 rows, scarious margin yellow-brown or deep brown, apex obtuse or rounded, outer ones triangular-lanceolate, ca. 3 mm, abaxially sparsely pubescent, middle and inner ones elliptic, ca. 4 mm, abaxially glabrous. Florets yellow, exterior with sessile glands; marginal female florets 8, corolla narrowly tubular, ca. 1.8 mm, apex 2- or 3-denticulate; disk florets many, corolla tubular, ca. 2.5 mm. Achenes ca. 1 mm. Fl. and fr. Aug-Oct.

● Mountain slopes; 200-3800 m. Gansu, Shaanxi, Shanxi, Sichuan, Xizang.