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FOC | Family List | FOC Vol. 20-21 | Asteraceae

5. Erigeron sect. Caenotus (Nuttall) Brouillet & Y. L. Chen, Fl. China. 20-21: 648. 2011.

小篷草组 xiao peng cao zu

Basionym: Erigeron [unranked] Caenotus Nuttall, Gen. N. Amer. Pl. 2: 148. 1818; Caenotus (Nuttall) Rafinesque; Conyzella Fabricius; Leptilon Rafinesque.

Herbs, annual [or subshrubs], taprooted [caudex simple]; herbage hirsute or glabrate. Stems branched. Leaves linear to lanceolate or oblanceolate, base not clasping, margin entire or sparsely serrate. Capitula erect in bud, numerous, in paniculiform or loosely corymbiform synflorescences. Ray florets white, lamina filiform, slightly longer than involucre, erect, not coiling or reflexed. Achenes 0.8-1.5 mm. Pappus 1-seriate, of 11-25 bristles, not accrescent.

Six species: North and South America, one species widely introduced worldwide in temperate to tropical regions, including China.

Lower Taxon


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