Burheads is a genus of plants in the family Alismataceae and distributed in the Western Hemisphere from the central United States to Argentina. The plants are annual or perennial growing emersed floating-leaved or seasonally submersed leaves glabrous to stellate-pubescent; rhizomes present or absent. Roots are not septate. Leaves are sessile or petiolate; blade with translucent markings as dots or lines present or absent linear to lanceolate to ovate. Flowers are bisexual subsessile to pedicellate. Fruits are plump often longitudinally ribbed sometimes flattened. As of spring 2014 30 species are accepted by authorities at Kew Royal Botanic Gardens.