多裂亚菊 duo lie ya ju

Chrysanthemum tripinnatisectum (Y. Ling & C. Shih) H. Ohashi & Yonekura.

Herbs, perennial, ca. 65 cm tall, with slender fibrous roots. Stems solitary, erect; synflorescence branches short; upper parts and peduncles appressed pubescent. Middle stem leaves sessile; leaf blade ovate or elliptic, 3-3.5 × 2-3 cm, abaxially gray-white, densely appressed pubescent, adaxially green, sparsely pubescent, 3-pinnatisect; primary lateral segments 3-paired; ultimate segments lanceolate or elliptic. Upper stem leaves progressively smaller. Synflorescence a terminal compound flat-topped panicle. Capitula many. Involucres campanulate, 3-4 mm in diam.; phyllaries in 4 rows, scarious margin yellow-brown, outer ones elliptic, ca. 2.5 mm, abaxially pubescent, middle and inner ones elliptic or oblanceolate, 3-4 mm, abaxially glabrous. Florets yellow, exterior with sessile glands; marginal female florets 7, corolla narrowly tubular, ca. 2 mm, acutely 3-denticulate; disk florets many, corolla tubular, ca. 3 mm. Achenes ca. 1 mm. Fl. and fr. Oct.

● Mountain slopes; 3200-3300 m. Sichuan (Hongyuan).