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Malachra Linn., Syst. Nat. ed. 12.2:458. 1767. Mant. 1:13. 1767; Mast. in Hook.f.,Fl.Brit.Ind.1:329.1874; Hutch., Gen.Fl.Pl.2:565.1967.
Annual to perennial, hispid or prickly herbs. Leaves angular, lobed or parted. Flowers axillary or terminal, in dense heads surrounded by large, deeply cordate bracts. Epicalyx segments usually absent. Calyx 5 dentate, cupular. Petals 5. Staminal column 5-toothed, short. Carpels 5; style branches 10. Mericarps 5, usually indehiscent.
A genus with about a dozen species chiefly distributed in America.
Lower Taxon
Related Synonym(s):
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