View source for Trixis

{{Short description|Genus of shrubs}}
{{Automatic taxobox
| image = Trixis-californica-20080405-3.JPG
| image_caption = ''[[Trixis californica]]''
| display_parents = 2
| taxon = Trixis
| authority = [[Patrick Browne (physician)|P.Browne]] 1756 not Adans. 1763 ([[Haloragaceae]]) nor Sw. 1788 (syn of ''[[Clibadium]]'' in [[Asteraceae]])<ref>[http://www.tropicos.org/NameSearch.aspx?name=Trixis&commonname= Tropicos, search for Trixis]</ref>
| synonyms =
* ''Prionanthes'' <small>Schrank</small>
* ''Bowmania'' <small>Gardner</small>
* ''Cleanthes'' <small>D.Don</small>
* ''Bowmannia'' <small>Gardner</small>
* ''Tenorea'' <small>Colla</small>
* ''Castra'' <small>Vell.</small>
| synonyms_ref = <ref name=u>[http://dixon.iplantcollaborative.org/CompositaeWeb/default.aspx?Page=NameDetails&TabNum=0&NameId=a117eb69-2590-49ac-aaa2-8770a452090e Flann, C (ed) 2009+ Global Compositae Checklist ] {{Webarchive|url=https://archive.today/20141228155740/http://dixon.iplantcollaborative.org/CompositaeWeb/default.aspx?Page=NameDetails&TabNum=0&NameId=a117eb69-2590-49ac-aaa2-8770a452090e |date=2014-12-28 }}</ref>
}}

'''''Trixis''''' is a [[genus]] of shrubs in the family [[Asteraceae]], native to [[North America|North]] and [[South America]] including the [[West Indies]].<ref>[https://www.biodiversitylibrary.org/page/11267833#page/327/mode/1up Browne, Patrick. 1756. Civil and Natural History of Jamaica in Three Parts page  312]</ref><ref>[https://www.biodiversitylibrary.org/page/11267833#page/550/mode/1up Browne, Patrick. 1756. Civil and Natural History of Jamaica in Three Parts plate 33, figure 1 on left] engraved black + white illustration</ref>

Members of the genus are commonly known as '''threefolds'''<ref name="ITIS">{{ITIS |ID=38579 |taxon=''Trixis'' |accessdate=2010-02-16}}</ref> due to the outer lip of the [[Petal#Corolla|corolla]]. The generic name is derived from {{Lang|grc|τριχος}} ({{Transliteration|grc|trixos}}), the [[Greek language|Greek]] word for 'threefold'.<ref>{{cite book |url=https://books.google.com/books?id=2ndDtX-RjYkC |title=CRC World Dictionary of Plant Names |volume=4 R-Z |year=2000 |first=Umberto |last=Quattrocchi |publisher=Taylor & Francis US |isbn=978-0-8493-2678-3 |pages=2737}}</ref><ref>[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=133845 Flora of North America Vol. 19, 20 and 21 Page 75, Threefold, ''Trixis'' P. Browne, Civ. Nat. Hist. Jamaica. 312, plate 33, fig. 1. 1756. ]</ref>

; Species<ref name=u/><ref name="GRINSpecies">{{cite web |url=http://www.ars-grin.gov/cgi-bin/npgs/html/splist.pl?12449 |title=GRIN Species Records of ''Trixis'' |work=Germplasm Resources Information Network |publisher=United States Department of Agriculture |access-date=2010-10-01}}</ref><ref>[http://bonap.net/NAPA/TaxonMaps/Genus/County/Trixis Biota of North America Program 2013 county distribution maps]</ref>
* ''[[Trixis aggregata]]'' <small>Rusby</small> -  Bolivia 
* ''[[Trixis alata]]'' <small>D.Don</small> - Guerrero, México State, Guanajuato 
* ''[[Trixis angustifolia]]'' <small>DC. -</small> San Luis Potosí  
* ''[[Trixis anomala]]'' <small>B.L.Turner</small> - Chiapas 
* ''[[Trixis antimenorrhoea]]'' <small>(Schrank) Mart. ex Baker</small> - South America 
* ''[[Trixis bowmanii]]'' <small>Baker</small> - Brazil 
* ''[[Trixis cacalioides]]'' <small>(Kunth) D.Don</small> - Peru 
* ''[[Trixis calcicola]]'' <small>B.L.Rob.</small> - Guerrero 
* ''[[Trixis californica]]'' <small>[[Albert Kellogg|Kellogg]]</small> &ndash; American threefold -  USA (CA AZ NM TX), Mexico (Baja California, Baja California Sur, Sonora, Chihuahua, Coahuila, Durango, Zacatecas, Nuevo León) 
* ''[[Trixis chiapensis]]'' <small>C.E.Anderson</small> - Guatemala, Chiapas 
* ''[[Trixis erosa]]'' <small>Sw.</small> - Costa Rica, West Indies 
* ''[[Trixis glaziovii]]'' <small>Baker</small> - [[Paraná (state)|Paraná]], [[Rio de Janeiro (state)|Rio de Janeiro]] 
* ''[[Trixis grandibracteata]]'' <small>C.E.Anderson</small> - Guerrero  
* ''[[Trixis grisebachii]]'' <small>Kuntze</small> - Bolivia, northern Argentina 
* ''[[Trixis haenkei]]'' <small>Sch.Bip.</small> - Durango, Sinaloa 
* ''[[Trixis hassleri]]'' <small>Chodat</small> - Paraguay  
* ''[[Trixis hyposericea]]'' <small>S.Wats.</small> - Jalisco, Michoacán, Nayarit 
* ''[[Trixis inula]]'' <small>[[Heinrich Johann Nepomuk von Crantz|Crantz]]</small> &ndash; Tropical threefold<ref name="ITIS"/> - USA (TX), Mexico, Central America, West Indies, Colombia, Venezuela 
* ''[[Trixis lessingii]]'' <small>DC.</small> - Paraguay, Uruguay, Brazil 
* ''[[Trixis longifolia]]'' <small>D.Don</small> - México State, Sinaloa 
* ''[[Trixis megalophylla]]'' <small>Greenm.</small> - México State, Oaxaca, Puebla 
* ''[[Trixis mexicana]]'' <small>Lex.</small> - Michoacán 
* ''[[Trixis michuacana]]'' <small>Lex.</small> - Michoacán, Jalisco, Nayarit 
* ''[[Trixis nelsonii]]'' <small>Greenm.</small> - Guatemala, Chiapas, Oaxaca 
* ''[[Trixis nobilis]]'' <small>(Vell.) Katinas</small> - Paraguay, Uruguay, Brazil, Argentina 
* ''[[Trixis ophiorhiza]]'' <small>Gardner</small> - Bolivia, Brazil 
* ''[[Trixis pallida]]'' <small>Less.</small> - Paraguay, Uruguay, Brazil, Argentina 
* ''[[Trixis parviflora]]'' <small>C.E.Anderson</small> - Oaxaca 
* ''[[Trixis peruviana]]'' <small>Katinas</small> - Peru 
* ''[[Trixis praestans]]'' <small>(Vell.) Cabrera</small> - Paraguay, Uruguay, Brazil, Argentina 
* ''[[Trixis pringlei]]'' <small>B.L.Rob. & Greenm.</small> - Guerrero, Oaxaca 
* ''[[Trixis proustioides]]'' <small>Hieron.</small> - Colombia  
* ''[[Trixis pterocaulis]]'' <small>B.L.Rob. & Greenm.</small> - Colima, Jalisco, Nayarit, Sinaloa, Sonora 
* ''[[Trixis silvatica]]'' <small>B.L.Rob. & Greenm.</small> - Oaxaca 
* ''[[Trixis spicata]]'' <small>Gardner</small> - Paraguay, Uruguay, Brazil 
* ''[[Trixis thyrsoidea]]'' <small>Dusén ex Malme</small> - southern Brazil 
* ''[[Trixis vauthieri]]'' <small>DC.</small> - eastern Brazil 
* ''[[Trixis verbascifolia]]'' <small>(Gardner) S.F.Blake</small> - [[Minas Gerais]], [[Rio de Janeiro (state)|Rio de Janeiro]] 
* ''[[Trixis villosa]]'' <small>(Spreng.) Sch.Bip.</small> - Brazil

; Formerly included
Numerous species once included in ''Trixis'' but now considered better suited to other genera: ''[[Acourtia]] [[Clibadium]] [[Dolichlasium]] [[Holocheilus]] [[Perezia (plant)|Perezia]] [[Riencourtia]]''

==References==
{{Reflist}}
* {{cite journal |first=C. |last=Anderson |year=1972 |title=A monograph of the Mexican and Central American species of ''Trixis'' (Compositae) |journal=Memoirs of the New York Botanical Garden |volume=22 |issue=3 |pages=1–68}}

==External links==
*{{Commons category-inline|Trixis|''Trixis''}}
*{{Wikispecies-inline|Trixis|''Trixis''}}

{{Taxonbar|from=Q3003873}}
{{Authority control}}

[[Category:Trixis| ]]
[[Category:Asteraceae genera]]


{{Asteraceae-stub}}