Butomus
genus of plants
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.
Taxonomy
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.
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].
Species
The family counts one species, Butomus umbellatus, or two according to some authorities.
Butomus junceus Turcz. (synonym Butomus umbellatus var. junceus (Turcz.) Micheli) – Siberia, Mongolia, and Tajikistan
Butomus umbellatus L. - China, Central Asia, Indian subcontinent, Middle East, Russia, Europe; naturalized in North America
References
External links
Butomaceae in L. Watson and M.J. Dallwitz (1992 onwards) The families of flowering plants: descriptions, illustrations, identification, information retrieval.
The public source identifies “Butomus” as genus of plants. This brief keeps that definition visible, then builds a research path around Butomus, genus and plants.
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Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Jun 14, 2026. The linked authority identifier is Q13409713. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2003, 1998 and 1992.
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This entry incorporates text from “Butomus” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.