Verbascum thapsus Linnaeus
- genus Verbascum L.
Biennials to 1.5 m tall, densely with grayish yellow stellate hairs. Basal and lower stem leaves petiolate; leaf blade oblanceolate-oblong, to 15 cm long, 6 cm wide, margin crenate. Other stem leaves gradually decreasing in size upward, sessile, oblong to ovate-oblong, base decurrent into wings. Spicate panicle cylindric, to 30 cm long, 2 cm wide, dense. Flowers usually few fascicled. Pedicel short. Calyx ca. 7 mm; lobes lanceolate. Corolla yellow, 1-2 cm in diameter. Stamens 5; filaments of anterior 2 stamens glabrous and of posterior 3 pubescent; anther lobes divergent at base. Capsule ovoid, as long as persistent calyx.
The chromosomal number of Verbascum thapsus is 2n = 36 (Hill, 1989; Wentworth et al., 1991; Lövkvist and Hultgård, 1999).
Ecology and Distribution
Flowering from June to August; fruiting from July to October.
Verbascum thapsus is occurring in Jiangsu, Sichuan, Xinjiang, Xizang, Yunnan, Zhejiang of China, Asia and Europe, naturalized throughout the Northern Hemisphere.
Growing in grassy areas on mountains slopes, along rivers; 1400-3200 m.