# Butomus

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{{Short description|Genus of flowering plants}}
{{automatic taxobox
| name = Flowering rush
| image = Butomus umbellatus - harilik luigelill Keilas.jpg
| image_caption = ''[Butomus umbellatus](/source/Butomus_umbellatus)''
| parent_authority = [Mirb.](/source/Charles-Fran%C3%A7ois_Brisseau_de_Mirbel)<ref name="apgiii">{{Citation |last=Angiosperm Phylogeny Group |year=2009 |title=An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III |journal=Botanical Journal of the Linnean Society |volume=161 |issue=2 |pages=105–121 |doi=10.1111/j.1095-8339.2009.00996.x |doi-access=free |hdl=10654/18083 |hdl-access=free }}</ref>
| taxon = Butomus
| authority = [L.](/source/Carl_Linnaeus)
| type_species = ''[Butomus umbellatus](/source/Butomus_umbellatus)''
| type_species_authority = [L.](/source/Carl_Linnaeus)
| subdivision_ranks = Species
| subdivision = See text
| range_map = Butomaceae range.jpg
}}
thumb|{{center|''Butomus umbellatus''<ref>illustration from Prof. Dr. Otto Wilhelm Thomé Flora von Deutschland, Österreich und der Schweiz 1885, Gera, Germany</ref>}}

'''''Butomus''''' is the only known [genus](/source/genus) in the  plant [family](/source/Family_(taxonomy)) '''Butomaceae''', native to [Europe](/source/Europe) and [Asia](/source/Asia).  It is considered invasive in some parts of the United States.<ref>{{Cite web|url=http://www.dnr.state.mn.us/invasives/terrestrialplants/herbaceous/floweringrush.html|title=Flowering rush - Invasive species: Minnesota DNR|website=www.dnr.state.mn.us|language=en|access-date=2018-02-06}}</ref> 

== Taxonomy ==
The '''Butomaceae''' family has been recognized by most [taxonomists](/source/taxonomists) as a [plant family](/source/plant_family); it is sometimes called the "flowering-rush family".

The [APG II system](/source/APG_II_system), of 2003 (unchanged from the [APG system](/source/APG_system), 1998), also recognizes such a family, and places it in the [order](/source/order_(biology)) [Alismatales](/source/Alismatales), in the clade [monocots](/source/monocots).  
At the [ranks](/source/rank_(botany)) of family and order, this is the same placement as in the [Cronquist system](/source/Cronquist_system).  However, Cronquist assumed a much smaller order and assigned the order to subclass [Alismatidae](/source/Alismatidae), in class [Liliopsida](/source/Liliopsida) [=monocotyledons].

== Species == 
The family counts one species, ''[Butomus umbellatus](/source/Butomus_umbellatus)'', or two according to some authorities.
*''[Butomus junceus](/source/Butomus_junceus)'' {{small|Turcz.}} (synonym ''Butomus umbellatus'' var. ''junceus'' {{small|(Turcz.) Micheli}}) – Siberia, Mongolia, and Tajikistan<ref>{{cite web |title=''Butomus junceus'' Turcz. |url=https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:58287-1 |website=[Plants of the World Online](/source/Plants_of_the_World_Online) |publisher=[Royal Botanic Gardens, Kew](/source/Royal_Botanic_Gardens%2C_Kew) |access-date=2 April 2025}}</ref>
*''Butomus umbellatus'' <small>L.</small> - [China](/source/China), [Central Asia](/source/Central_Asia), [Indian subcontinent](/source/Indian_subcontinent), [Middle East](/source/Middle_East), [Russia](/source/Russia), [Europe](/source/Europe); naturalized in [North America](/source/North_America)<ref>{{Cite web|url=http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200024717|title=Butomus umbellatus in Flora of China @ efloras.org|website=www.efloras.org|access-date=2017-01-31}}</ref><ref>{{Cite web|url=http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=10135|title=Butomaceae in Flora of North America @ efloras.org|website=www.efloras.org|access-date=2017-01-31}}</ref>

== References ==
{{Reflist}}

== External links ==
* [http://delta-intkey.com/angio/www/butomace.htm Butomaceae] in L. Watson and M.J. Dallwitz (1992 onwards) ''[https://web.archive.org/web/20101213041459/http://delta-intkey.com/angio/ The families of flowering plants:] descriptions, illustrations, identification, information retrieval''. Version: 27 April 2006. https://web.archive.org/web/20070103200438/http://delta-intkey.com/.
* [http://www.efloras.org/florataxon.aspx?flora_id=1200&taxon_id=10135 ''Monocot families'' (United States Department of Agriculture)]
* [https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Tree&id=50234&lvl=3&lin=f&keep=1&srchmode=1&unlock National Center for Biotechnology Information Taxonomy Browser]
* [http://www.csdl.tamu.edu/FLORA/cgi/gateway_family?fam=Butomaceae links at CSDL, Texas A&M University] {{Webarchive|url=https://web.archive.org/web/20081012120154/http://www.csdl.tamu.edu/FLORA/cgi/gateway_family?fam=Butomaceae |date=2008-10-12 }}
{{commons category|Butomus}}
*[http://greif.uni-greifswald.de/floragreif/?fam=Butomaceae&gen=&spec=&flora_search=taxon Butomaceae of Mongolia in FloraGREIF] {{Webarchive|url=https://web.archive.org/web/20120226222243/http://greif.uni-greifswald.de/floragreif/?fam=Butomaceae&gen=&spec=&flora_search=taxon |date=2012-02-26 }}

{{Angiosperm families}}
{{Taxonbar|from=Q13409713}}

Category:Alismatales

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Adapted from the Wikipedia article [Butomus](https://en.wikipedia.org/wiki/Butomus) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Butomus?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.