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

Common names: Flowering-rush
Etymology: 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
Treatment appears in FNA Volume 22.
FNA22 P1 Butomus Limnocharis Hydrocleys pg 4.jpegHydrocleys nymphoides
Butomus umbellatus
Limnocharis flava

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.


Introduced; North America, Eurasia


Species 1.

Selected References


Lower Taxa

... more about "Butomus"
Robert R. Haynes +
Linnaeus +
flattened +  and triangular +
Flowering-rush +
North America +  and Eurasia +
Greek butomos/butomon, marsh plant +, from Greek bous, cow, and temno, to cut +  and referring to sharp leaves, known or believed to cut mouths of cattle +
hypogynous +
floating +, submersed +  and emersed +
not septate +
Butomus +
Butomaceae +
light pink-purple +
persistent +
darker purple +
stemless +  and rhizomatous +