光苞亚菊 guang bao ya ju

Chrysanthemum nitidum (C. Shih) H. Ohashi & Yonekura.

Herbs, perennial, ca. 30 cm tall. Stems erect, upper parts inflorescence-branched, pubescent. Middle stem leaves sessile, with divided pseudostipules; leaf blade ovate or oblanceolate, 1-1.5 × 0.3-0.6 cm, both surfaces gray-white, densely pubescent, bipalmate-pinnately 3-5-sect; primary lateral segments 1- or 2-paired; ultimate segments elliptic or triangular; leaves below synflorescence small, 3-sect or undivided. Synflorescence a terminal compound lax flat-topped panicle. Capitula many. Involucres campanulate, 3-4 mm in diam.; phyllaries in 4 rows, straw-colored, glossy, scarious margin hyaline, outer ones lanceolate, ca. 1 mm, sparsely pubescent, middle and inner ones ovate, elliptic, or ovate-elliptic, 2-2.7 mm, abaxially glabrous. Florets yellow; marginal female florets 8, corolla narrowly tubular, apex 3- or 4-denticulate; disk florets many, corolla tubular. Fl. Sep.

● Dry mountain slopes; ca. 3900 m. Sichuan.