Butomus

Flowering rush
File:Butomus umbellatus - harilik luigelill Keilas.jpg
Butomus umbellatus
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Monocots
Order:	Alismatales
Family:	Butomaceae Mirb.
Genus:	Butomus L.
Species:	B. umbellatus
Type species
Butomus umbellatus L.

File:Illustration Butomus umbellatus0.jpg

Butomus umbellatus

Butomus is the only known genus in the plant family Butomaceae, native to Europe and Asia. Two species are recognized:

Species

• Butomus junceus Turcz. - Central Asia
• Butomus umbellatus L. - China, Central Asia, Indian Subcontinent, Middle East, Russia, Europe; naturalized in North America

Butomaceae

Butomaceae 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.

At the ranks of family and order this is the same placement as in the Cronquist system. However, Cronquist assumed a much smaller order and assigned the order to subclass Alismatidae, in class Liliopsida [=monocotyledons].

External links

• Butomaceae in L. Watson and M.J. Dallwitz (1992 onwards) The families of flowering plants: descriptions, illustrations, identification, information retrieval. Version: 27 April 2006. http://delta-intkey.com.
• Monocot families (United States Department of Agriculture)
• National Center for Biotechnology Information Taxonomy Browser
• links at CSDL, Texas A&M University

• Butomaceae of Mongolia in FloraGREIF