秋拟鼠麴草 qiu ni shu qu cao

Gnaphalium hypoleucum Candolle in Wight, Contr. Bot. India, 21. 1834; G. amoyense Hance; G. confertum Bentham; G. hololeucum Hayata; G. hypoleucum var. amoyense (Hance) Handel-Mazzetti; G. hypoleucum var. brunneonitens Handel-Mazzetti; G. hypoleucum var. hololeucum (Hayata) Yamamoto.

Herbs, erect, 30-60(-80) cm tall, usually simple, branched above, grayish pubescent to lanate or brownish glandular. Leaves linear, 1.5-7.5 × 0.1-0.7 cm, bicolored, white tomentose abaxially, dull green glandular pubescent adaxially, margin entire to crispate or revolute, subamplexicaul, usually undulate. Capitula in dense corymbose clusters, densely lanate, 3-3.5 mm in diam. Phyllaries 4- or 5-seriate, yellow to snow white, oblong, ca. 4 mm, apex acute rarely subacute. Outer florets filiform; corolla yellow, ca. 2 mm, 3- or 4-toothed. Disk florets ca. 2 mm; corolla 5-lobed. Achenes papillose, ca. 0.5 mm. Pappus setae white, free, minutely bristly, equaling corolla. Fl. Apr-Oct. 2n = 14.

Waste fields, grasslands, roadsides; below 2700 m. Anhui, Fujian, Guangdong, Hunan, Jiangxi, Sichuan, Taiwan, Yunnan, Zhejiang [Bhutan, India, Indonesia, Japan, Korea, Myanmar, Nepal, Pakistan, Philippines, Thailand, Vietnam; SW Asia (Iran)].

This species is easily distinguished by its robust habit and subamplexicaul leaves, which are dull green adaxially and white tomentose abaxially.