Cyclicity
provided by Plants of Tibet
Flowering from June to August; fruiting from July to October.
Distribution
provided by Plants of Tibet
Verbascum thapsus is occurring in Jiangsu, Sichuan, Xinjiang, Xizang, Yunnan, Zhejiang of China, Asia and Europe, naturalized throughout the Northern Hemisphere.
General Description
provided by Plants of Tibet
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.
Genetics
provided by Plants of Tibet
The chromosomal number of Verbascum thapsus is 2n = 36 (Hill, 1989; Wentworth et al., 1991; Lövkvist and Hultgård, 1999).
Habitat
provided by Plants of Tibet
Growing in grassy areas on mountains slopes, along rivers; 1400-3200 m.
