款冬属 kuan dong shu

Authors: Yilin Chen & Bertil Nordenstam

Herbs, scapigerous. Rhizomes perennial, repent or procumbent. Leaves developed after anthesis; basal leaves ovate or triangular-cordate. Scapes few, with many bractlike leaves. Capitulum 1, heterogamous, radiate. Involucres campanulate; phyllaries 1- or 2-seriate, equal, lanceolate, apically acuminate. Receptacle flat, glabrous. Florets yellow; ray florets female, numerous, fertile; disk florets functionally male, few; corolla tubular, 5-lobed. Anthers entire or subauriculate at base, filaments apically with equally sized cells. Style entire, apically obtuse, stigma papillose. Achenes narrowly cylindric, 5-10-ribbed. Pappus of many fine bristles, white.

One species: temperate N Africa, Asia, Europe.

Lower Taxon

• Tussilago farfara Linnaeus