拟鼠麴草 ni shu qu cao

Gnaphalium affine D. Don, Prodr. Fl. Nepal. 173. 1825; G. confusum Candolle; G. javanum Candolle; G. luteoalbum Linnaeus subsp. affine (D. Don) J. Koster; G. luteoalbum var. multiceps (Wallich ex Candolle) J. D. Hooker; G. multiceps Wallich ex Candolle; G. ramigerum Candolle; Laphangium affine (D. Don) Tzvelev; Pseudognaphalium luteoalbum (Linnaeus) Hilliard & B. L. Burtt subsp. affine (D. Don) Hilliard & B. L. Burtt.

Herbs, biennial. Stems 15-40 cm tall, densely white lanate tomentose. Leaves thin; lower leaves smaller than median cauline leaves; cauline leaves spatulate, 2-6 × 4-12 cm, white lanate on both surfaces, base angular, narrowed, sessile, decurrent, margin entire, apex rounded, mucronulate. Capitula numerous, densely aggregated in terminal corymbs. Involucre globose-campanulate, ca. 3 × 3.5 mm; phyllaries 3-seriate, pale yellow, outer ones shorter, broadly ovate, inner ones oblong, apex obtuse. Outer florets many, ca. 1.75 mm. Central florets 5-10; corolla ca. 2 mm. Achenes oblong, compressed, ca. 0.5 mm, papillose. Pappus white, ca. 2 mm, bristles deciduous separately. 2n = 14.

A weed of wastelands and cultivated fields, common; sea level to 2000 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Shandong, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang [Afghanistan, Bhutan, India, Indonesia, Japan, Korea, Myanmar, Nepal, Pakistan, Philippines, Vietnam; SW Asia (Iran), Australia].