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Calyptocarpus Less.


Calyptocarpus vialis

Credit: HAST

Small annual or perennial herbs, usually procumbet or prostrate. Leaves opposite, petiolate, crenate-serrate. Heads solitary or in small dense clusters, radiate. Involucral bracts ca. five. Receptacle with flat or concave paleae. Ray florets 5 to 8, pistillate, yellow; disc florets 4- or 5-lobed, yellow. Achenes oblanceolate-obconical, dorsiventrally compressed, tuberculate or smooth. Pappus of 2 stout awns.

Three species in the southern United State, Mexico, Central America, Cuba and Brazil. One species naturalized in Taiwan.

Lower Taxon


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