Shinnersia

{{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 native to Texas, Coahuila, and Nuevo León.

It is classified in tribe Eupatorieae within family 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'' and ''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 }}</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 }}</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, 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 of the Southern Methodist University.<ref name=t/>

== References == {{Reflist}}

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