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FOC | Family List | FOC Vol. 20-21 | Asteraceae | Duhaldea

4. Duhaldea cappa (Buchanan-Hamilton ex D. Don) Pruski & Anderberg, Compositae Newslett. 40: 44. 2003.

羊耳菊 yang er ju

Conyza cappa Buchanan-Hamilton ex D. Don, Prodr. Fl. Nepal. 176. 1825; Baccharis chinensis Loureiro; Blumea arnottiana Steudel; B. chinensis Hooker & Arnott (1837), not (Linnaeus) Candolle (1836), nor Walpers (1843); C. dentata Blanco (1837), not Willdenow (1803); Duhaldea chinensis Candolle; D. chinensis var. cappa (Buchanan-Hamilton ex D. Don) Steetz; D. lanuginosa (C. C. Chang) Anderberg; Inula cappa (Buchanan-Hamilton ex D. Don) Candolle; I. eriophora Candolle; I. intermedia C. C. Chang & Y. C. Tseng (1974), not Steudel (1821); I. lanuginosa C. C. Chang; I. oblonga Candolle; I. pseudocappa Candolle; Moquinia eriosematoides (Walpers) Walpers; Vernonia congesta Bentham; V. eriosematoides Walpers.

Shrubs, 70-200 cm tall. Stems lanate-tomentose, branched. Petiole ca. 5 mm (rarely to 20 mm); leaf blade elliptic, lanceolate, or narrowly oblong, 8-23 × 2.5-5.5 cm, thick, rather papery, whitish lanate abaxially, obscuring minor veins, green and sparsely coarsely pubescent adaxially, base rounded (rarely tapered), margin remotely serrulate, apex acute or shortly acuminate. Capitula radiate or disciform, in dense corymbs. Involucre 6-seriate; phyllaries lanceolate, tomentose, inner ones 4.5-6 × ca. 0.7 mm. Ray florets few; corollas yellow, usually 4.5-5.3 mm, tubular and erect or curved outward or with short lamina to 1 × 1 mm, rarely tube 2.9-3.5 mm with lamina 2.3-2.9 mm. Disk floret corollas yellow, 4.7-6 × 4-6 mm. Achenes cylindric, ca. 1.8 mm, white tomentose. Pappus whitish, sometimes brownish tipped, 4-5 cm. Fl. Jun-Oct, fr. Aug-Dec. 2n = 20.

Dry hills, waste fields, thickets, grasslands; 200-3200 m. Fujian, Guangdong, Guangxi, Guizhou, Hainan, Sichuan, Yunnan, Zhejiang [Bhutan, India, Malaysia, Nepal, Pakistan, Thailand, Vietnam].


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