深裂亚菊 shen lie ya ju

Chrysanthemum truncatum Handel-Mazzetti, Acta Horti Gothob. 12: 270. 1938.

Subshrubs, 15-35 cm tall. Old branches gray-brown; flowering branches sparsely appressed tomentose. Middle stem leaves: petiole 0.2-0.6 cm; leaf blade ovate or broadly ovate, ca. 1.2 × 1.2 cm, both surfaces gray-white, adaxially densely tomentose, pinnatisect; lateral segments 1- or 2-paired. Distal leaves and leaves below synflorescence smaller, undivided. Synflorescence a terminal compound flat-topped panicle, 1-2.5 cm in diam. Capitula many. Involucres campanulate, 2.4-3 mm in diam.; phyllaries in 4 rows, straw-colored, abaxially glabrous, scarious margin hyaline, apex obtuse or rounded, outer ones ovate or triangular-lanceolate, ca. 2 mm, middle and inner ones elliptic, ca. 3 mm. Florets yellow; marginal female florets ca. 16, corolla narrowly tubular, ca. 2 mm, apex 4-denticulate; disk florets: corolla tubular, ca. 3 mm. Achenes ca. 1 mm. Fl. and fr. Sep-Oct.

● Streamsides, wastelands, slopes; 1900-2100 m. Sichuan (Jinchuan).