灰叶亚菊 hui ye ya ju

Chrysanthemum potaninii (Krascheninnikov) Handel-Mazzetti var. amphisericeum Handel-Mazzetti, Acta Horti Gothob. 12: 271. 1938.

Subshrubs, 18-35 cm tall. Old branches gray-brown; flowering branches sparsely appressed pubescent. Middle stem leaves: petiole ca. 3 mm; leaf blade orbicular or broadly elliptic, 0.7-2 × 0.5-1.5 cm, both surfaces gray-white, densely tomentose, margin undivided, serrate. Uppermost leaves orbicular or narrowly elliptic, small. Synflorescence a terminal flat-topped panicle, 1-4 cm in diam. Capitula many. Involucres campanulate, ca. 3 mm in diam.; phyllaries in 4 rows, straw-colored, scarious margin hyaline, apex obtuse or rounded, outer ones ovate or triangular-lanceolate, ca. 2.5 mm, abaxially pubescent, middle and inner ones elliptic or lanceolate, ca. 3 mm, middle ones pubescent abaxially, inner ones glabrous abaxially. Florets yellow; marginal female florets ca. 13, corolla narrowly tubular, ca. 3 mm, apex 4-denticulate; disk florets many, corolla tubular, ca. 4 mm. Achenes ca. 2 mm. Fl. and fr. Sep-Nov.

● Mountain slopes; 1700-2300 m. Sichuan (Kangding, Tianquan).