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FNA | Family List | FNA Vol. 22 | Butomaceae

1. Butomus Linnaeus, Sp. Pl. 1: 372. 1753; Gen. Pl. ed. 5; 174, 1754.

Flowering-rush [Greek butomos / butomon, marsh plant; from Greek bous, cow, and temno, to cut; referring to sharp leaves, known or believed to cut mouths of cattle]

Plants in fresh water to 2 m deep. Leaves emersed, submersed, or floating; blade triangular proximally, flattened distally. Inflorescences overtopping leaves; scape trianglular; bracts 3, subtending umbel. Flowers: tepals light pink-purple with darker purple veins; stamens in 2 cycles, outer cycle of 3 pairs opposite outer tepals, inner cycle of 3 opposite inner tepals; anthers ovoid; pistils pink. Fruits leathery, beaked.

Species 1: introduced, North America; Eurasia.

Lower Taxon


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