Butomus

Description

Butomus is the only known genus in the plant family Butomaceae, native to Europe and Asia. It is considered invasive in some parts of the United States. The Butomaceae family has been recognized by most taxonomists as a plant family; it is sometimes called the "flowering-rush family". The APG II system, of 2003 (unchanged from the APG system, 1998), also recognizes such a family, and places it in the order Alismatales, in the clade monocots. The family counts a single species, Butomus umbellatus.