Trixis

{{Short description|Genus of shrubs}}

{{Automatic taxobox

| image = Trixis-californica-20080405-3.JPG

| image_caption = Trixis californica

| display_parents = 2

| taxon = Trixis

| authority = P.Browne 1756 not Adans. 1763 (Haloragaceae) nor Sw. 1788 (syn of Clibadium in Asteraceae)[http://www.tropicos.org/NameSearch.aspx?name=Trixis&commonname= Tropicos, search for Trixis]

| synonyms =

• Prionanthes Schrank
• Bowmania Gardner
• Cleanthes D.Don
• Bowmannia Gardner
• Tenorea Colla
• Castra Vell.

| synonyms_ref = [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 }}

}}

Trixis is a genus of shrubs in the family Asteraceae, native to North and South America including the West Indies.[https://www.biodiversitylibrary.org/page/11267833#page/327/mode/1up Browne, Patrick. 1756. Civil and Natural History of Jamaica in Three Parts page 312][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

Members of the genus are commonly known as threefolds{{ITIS |ID=38579 |taxon=Trixis |accessdate=2010-02-16}} due to the outer lip of the corolla. The generic name is derived from {{Lang|grc|τριχος}} ({{Transliteration|grc|trixos}}), the Greek word for 'threefold'.{{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}}[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. ]

; Species{{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}}[http://bonap.net/NAPA/TaxonMaps/Genus/County/Trixis Biota of North America Program 2013 county distribution maps]

• Trixis aggregata Rusby - Bolivia
• Trixis alata D.Don - Guerrero, México State, Guanajuato
• Trixis angustifolia DC. - San Luis Potosí
• Trixis anomala B.L.Turner - Chiapas
• Trixis antimenorrhoea (Schrank) Mart. ex Baker - South America
• Trixis bowmanii Baker - Brazil
• Trixis cacalioides (Kunth) D.Don - Peru
• Trixis calcicola B.L.Rob. - Guerrero
• Trixis californica Kellogg – American threefold - USA (CA AZ NM TX), Mexico (Baja California, Baja California Sur, Sonora, Chihuahua, Coahuila, Durango, Zacatecas, Nuevo León)
• Trixis chiapensis C.E.Anderson - Guatemala, Chiapas
• Trixis erosa Sw. - Costa Rica, West Indies
• Trixis glaziovii Baker - Paraná, Rio de Janeiro
• Trixis grandibracteata C.E.Anderson - Guerrero
• Trixis grisebachii Kuntze - Bolivia, northern Argentina
• Trixis haenkei Sch.Bip. - Durango, Sinaloa
• Trixis hassleri Chodat - Paraguay
• Trixis hyposericea S.Wats. - Jalisco, Michoacán, Nayarit
• Trixis inula Crantz – Tropical threefold - USA (TX), Mexico, Central America, West Indies, Colombia, Venezuela
• Trixis lessingii DC. - Paraguay, Uruguay, Brazil
• Trixis longifolia D.Don - México State, Sinaloa
• Trixis megalophylla Greenm. - México State, Oaxaca, Puebla
• Trixis mexicana Lex. - Michoacán
• Trixis michuacana Lex. - Michoacán, Jalisco, Nayarit
• Trixis nelsonii Greenm. - Guatemala, Chiapas, Oaxaca
• Trixis nobilis (Vell.) Katinas - Paraguay, Uruguay, Brazil, Argentina
• Trixis ophiorhiza Gardner - Bolivia, Brazil
• Trixis pallida Less. - Paraguay, Uruguay, Brazil, Argentina
• Trixis parviflora C.E.Anderson - Oaxaca
• Trixis peruviana Katinas - Peru
• Trixis praestans (Vell.) Cabrera - Paraguay, Uruguay, Brazil, Argentina
• Trixis pringlei B.L.Rob. & Greenm. - Guerrero, Oaxaca
• Trixis proustioides Hieron. - Colombia
• Trixis pterocaulis B.L.Rob. & Greenm. - Colima, Jalisco, Nayarit, Sinaloa, Sonora
• Trixis silvatica B.L.Rob. & Greenm. - Oaxaca
• Trixis spicata Gardner - Paraguay, Uruguay, Brazil
• Trixis thyrsoidea Dusén ex Malme - southern Brazil
• Trixis vauthieri DC. - eastern Brazil
• Trixis verbascifolia (Gardner) S.F.Blake - Minas Gerais, Rio de Janeiro
• Trixis villosa (Spreng.) Sch.Bip. - Brazil

; Formerly included

Numerous species once included in Trixis but now considered better suited to other genera: Acourtia Clibadium Dolichlasium Holocheilus Perezia Riencourtia