Trixis

Trixis is a genus of shrubs in the aster family, Asteraceae, native to North and South America including the West Indies.[4][5]

threefolds
Trixis californica
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Subfamily:
Mutisioideae
Tribe:
Nassauvieae[1][2]
Genus:
Trixis

P.Browne 1756 not Adans. 1763 (Haloragaceae) nor Sw. 1788 (syn of Clibadium in Asteraceae)[3]
Synonyms[2]

Members of the genus are commonly known as threefolds[6] due to the outer lip of the corolla. The generic name is derived from τριχος (trixos), the Greek word for threefold.[7][8]

Species[2][9][10]
  • Trixis aggregata Rusby - Bolivia
  • Trixis alata D.Don - Guerrero, México State, Guanajuato
  • Trixis angustifolia DC. - San Luis Potosi
  • 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[6] - 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

References
  1. "Genus Trixis". Taxonomy. UniProt. Retrieved 2010-02-18.
  2. Flann, C (ed) 2009+ Global Compositae Checklist Archived 2014-12-28 at Archive.today
  3. Tropicos, search for Trixis
  4. Browne, Patrick. 1756. Civil and Natural History of Jamaica in Three Parts page 312
  5. Browne, Patrick. 1756. Civil and Natural History of Jamaica in Three Parts plate 33, figure 1 on left engraved black + white illustration
  6. "Trixis". Integrated Taxonomic Information System. Retrieved 2010-02-16.
  7. Quattrocchi, Umberto (2000). CRC World Dictionary of Plant Names. 4 R-Z. Taylor & Francis US. p. 2737. ISBN 978-0-8493-2678-3.
  8. 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.
  9. "GRIN Species Records of Trixis". Germplasm Resources Information Network. United States Department of Agriculture. Retrieved 2010-10-01.
  10. Biota of North America Program 2013 county distribution maps
  • Anderson, C. (1972). "A monograph of the Mexican and Central American species of Trixis (Compositae)". Memoirs of the New York Botanical Garden. 22 (3): 1–68.

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