# Shinnersia

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{{Short description|Genus of aquatic plants}}
{{Speciesbox
|image = Shinnersia rivularis.jpg
|image_caption =
|display_parents = 3
|genus = Shinnersia 
|parent_authority = R.M.King & H.Rob.
|species = rivularis
|authority = (A.Gray) R.M.King & H.Rob.
|synonyms = ''Trichocoronis rivularis'' <small>A.Gray</small>
|synonyms_ref = <ref name=w/>
}}

'''''Shinnersia rivularis''''', known as the '''Rio Grande bugheal'''<ref>{{PLANTS|id=TRRI6|taxon=Trichocornis rivularis|accessdate=14 December 2015}}</ref> or '''Mexican oak leaf plant''', is an [aquatic plant](/source/aquatic_plant) native to [Texas](/source/Texas), [Coahuila](/source/Coahuila), and [Nuevo León](/source/Nuevo_Le%C3%B3n).  

It is classified in [tribe Eupatorieae](/source/Eupatorieae) within [family Asteraceae](/source/Asteraceae).<ref name=t>[https://www.biodiversitylibrary.org/page/13020767#page/311/mode/1up King, Robert Merrill & Robinson, Harold Ernest. 1970.  Phytologia 19(5): 297–298]</ref><ref>[http://www.tropicos.org/Name/40036157 Tropicos, ''Shinnersia'' R.M. King & H. Rob.]</ref><ref name=w>[https://archive.today/20141218194133/http://dixon.iplantcollaborative.org/CompositaeWeb/Default.aspx?Page=NameSearch&searchText=Shinnersia&searchField=NameFull Flann, C (ed) 2009+ Global Compositae Checklist ]</ref><ref>[http://bonap.net/MapGallery/County/Shinnersia%20rivularis.png Biota of North America Program 2013 county distribution map]</ref>  It is thought to be related to two other aquatic genera in this tribe, ''[Sclerolepis](/source/Sclerolepis)'' and ''[Trichocoronis](/source/Trichocoronis)''.<ref name="fna-rivularis">{{cite web | url = http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=220012488 | title = ''Shinnersia rivularis'' (A. Gray) R. M. King & H. Robinson | work = [Flora of North America](/source/Flora_of_North_America) }}</ref> The roots live in the muck at the bottom of shallow slow-moving water (for example, along a stream), and the stem extends above the water slightly (less than 10 centimetres).<ref name="fna">{{cite web | url = http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=130265 | title = Shinnersia R. M. King & H. Robinson | work = [Flora of North America](/source/Flora_of_North_America) }}</ref><ref>{{cite book | title = Rare Plants of Texas | author = Jackie M. Poole | date = 2007 | isbn = 978-1-58544-557-8 | pages = 498–499 | publisher = Texas A&M University Press | url = https://books.google.com/books?id=pM-UVgc-BDkC&dq=%22Trichocoronis+rivularis%22&pg=PA498 }}</ref>

''Shinnersia'' is a common [freshwater aquarium plant](/source/List_of_freshwater_aquarium_plant_species), and can sometimes be found having escaped cultivation.<ref>{{cite web | title = Alien aquatic plants of North Rhine-Westphalia: history, present distribution and management | url = http://www.lanaplan.de/download/Poster%20DenHaag.pdf | author = Andreas Hussner & Klaus van de Weyer }}</ref> The genus is named in honor of [Lloyd H. Shinners](/source/Lloyd_H._Shinners) of the [Southern Methodist University](/source/Southern_Methodist_University).<ref name=t/>

== References ==
{{Reflist}}

{{Taxonbar|from1=Q16913683|from2=Q7497690}}

Category:Eupatorieae
Category:Aquatic plants
Category:Flora of Texas
Category:Monotypic Asteraceae genera
Category:Flora of Northeastern Mexico

{{Eupatorieae-stub}}

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