Ligularia Cass.
橐吾屬
PENG, Ching-I & CHUNG, Shih-Wen
Perennial herbs. Leaves mostly radical, usually cordate, reniform or ovate-oblong, petiolate, cauline leaves few, alternate, conspicuously sheathed at base, uppermost leaves bract-like. Heads relatively large, nodding or deflexed, in corymbs or racemes, peduncle often bracteate. Involucre tubular or campanulate, bracts equal, in 1 series, narrower outer ones overlapping margins of broader inner ones. Ray florets pistillate, corollas yellow; disc florets central, bisexual, fertile, corolla tubular, limb 5-lobed. Style arms recurved, obtuse. Achenes terete, striate, beakless, glabrous. Pappus elongate or short, scabrous or pilose.
About 130 species mainly in Asia; three species in Taiwan.
