欧亚旋覆花 ou ya xuan fu hua

Herbs, perennial, 10-40(-75) cm tall. Stems erect, villous. Leaves sessile; basal blades lanceolate, (3-)6-7 cm × 8-20(-30) mm; cauline blades lanceolate-elliptic to lanceolate-linear, 2-5+ cm × 5-12(-20) mm, abaxially usually densely villous and glandular, adaxially sparsely strigillose to glabrate, bases cordate or auriculate, clasping, margins entire or serrulate. Capitula 1-8, 2.5-5 cm in diam.; peduncles 1-4 cm, densely villous. Involucre (7-)15-22 mm in diam.; phyllaries in 4 or 5 series, outer ones lanceolate-linear, 4-6 × 0.5-0.8 mm, bases sericeous, inner similar, more scarious. Ray florets 40-70+; lamina 10-15(-20) mm. Disk floret corollas 4-6 mm, 5-lobed. Achenes cylindric, 1-1.2 mm, puberulent. Pappus white, of 20-25 distinct or basally connate bristles 4-6 mm. Fl. Jun-Sep. 2n = 16, 32.

Roadsides, wastelands, fields, sandy places; 300-1700 m. Hebei, Heilongjiang, Nei Mongol, Xinjiang [Russia, Tajikistan, Turkmenistan, Uzbekistan; Europe].

Lower Taxa

• Inula britannica var. angustifolia Beck
• Inula britannica var. britannica
• Inula britannica var. ramosissima Ledebour
• Inula britannica var. sublanata Komarov