Emergent paludal perennial with thick, prostrate rhizomes. Inflorescence umbelliform on a triangular scape. The umbel is subtended by 3 persistent purplish acute-attenuate brackts. Flwowers are numerous, regular.
Only one species is found in MB Butomus umbellatus - introduced into North America in late 1800s.
Genera found in Manitoba:
Butomus