{{Short description|Genus of flowering plants}} {{Automatic taxobox |image = Tridax procumbens (2).jpg |image_caption = ''Tridax procumbens'' |display_parents = 3 |taxon = Tridax |authority = L. |type_species = ''Tridax procumbens'' |type_species_authority = L. |synonyms_ref = <ref name=v/> |synonyms = * ''Ptilostephium'' <small>Kunth</small> * ''Mandonia'' <small>Wedd.</small> * ''Sogalgina'' <small>Cass.</small> * ''Balbisia'' <small>Willd. 1803, rejected homonym not Cav. 1804 (Francoaceae) nor DC. 1833 (Asteraceae)</small> * ''Bartolia'' <small>Adans.</small> * ''Bartolina'' <small>Adans.</small> * ''Carphostephium'' <small>Cass.</small> * ''Galinsogea'' <small>Kunth 1818, illegitimate homonym not Willd. 1803</small> }}
'''''Tridax''''' is a genus of flowering plants in the family Asteraceae.<ref>[https://www.biodiversitylibrary.org/page/358921#page/342/mode/1up Linnaeus, Carl von. 1753. Species Plantarum 2: 900] in Latin</ref><ref>[http://www.tropicos.org/Name/40018129 Tropicos, ''Tridax'' L.]</ref>
''Tridax'' is native primarily to the tropical regions of North and South America. ''Tridax procumbens'' has become naturalized in the southern United States and is considered a noxious weed in some places.
; Species<ref name=v>[https://archive.today/20150118181455/http://dixon.iplantcollaborative.org/CompositaeWeb/default.aspx?Page=NameDetails&TabNum=0&NameId=4f9a4559-59f9-4c0d-9645-8f23deaaec8c Flann, C (ed) 2009+ Global Compositae Checklist ]</ref> {{columns-list|colwidth=30em| * ''Tridax angustifolia'' <small>Spruce ex Benth. & Hook.f.</small> - Ecuador, Peru * ''Tridax balbisioides'' <small>(Kunth) A.Gray</small> - Guanajuato * ''Tridax bicolor'' <small>A.Gray</small> - Chihuahua * ''Tridax bilabiata'' <small>A.M.Powell</small> - Guerrero * ''Tridax boliviensis'' <small>(Wedd.) R.E.Fr.</small> - Bolivia * ''Tridax brachylepis'' <small>Hemsl.</small> - Oaxaca * ''Tridax cajamarcensis'' <small>H.Rob.</small> - Peru * ''Tridax candidissima'' <small>A.Gray</small> - San Luis Potosí * ''Tridax coronopifolia'' <small>(Kunth) Hemsl.</small> - widespread from Tamaulipas to Chiapas * ''Tridax dubia'' <small>Rose</small> - Colima * ''Tridax erecta'' <small>A.Gray</small> * ''Tridax hintonii'' <small>(B.L.Turner & A.M.Powell) D.J.Keil, Luckow & Pinkava</small> - Michoacán * ''Tridax hintoniorum'' <small>B.L.Turner</small> - Nuevo León * ''Tridax luisana'' <small>Brandegee</small> - Puebla, Oaxaca * ''Tridax mexicana'' <small>A.M.Powell</small> - Guerrero, Oaxaca, Jalisco, México State, Veracruz, Nayarit, Michoacán * ''Tridax moorei'' <small>B.L.Rob.</small> - Hidalgo * ''Tridax oaxacana'' <small>B.L.Turner</small> - Oaxaca * ''Tridax obovata'' <small>Turcz.</small> - Oaxaca * ''Tridax oligantha'' <small>C.E.Anderson & Beaman</small> * ''Tridax palmeri'' <small>A.Gray</small> - San Luis Potosí * ''Tridax platyphylla'' <small>B.L.Rob.</small> - Jalisco * ''Tridax procumbens'' <small>(L.) L.</small> - Veracruz; widespread invasive * ''Tridax purpurea'' <small>S.F.Blake</small> - Guatemala, Chiapas * ''Tridax rosea'' <small>Sch.Bip. ex B.L.Rob. & Greenm.</small> - Hidalgo, D.F. * ''Tridax tambensis'' <small>Hieron.</small> - Peru, Ecuador * ''Tridax tenuifolia'' <small>Rose</small> - Chihuahua * ''Tridax trilobata'' <small>(Cav.) Hemsl.</small> - Michoacán, México State * ''Tridax venezuelensis'' <small>Aristeg. & Cuatrec.</small> - Venezuela * ''Tridax yecorana'' <small>B.L.Turner</small> - eastern Sonora in Sierra Madre Occidental }} ; formerly included<ref name=v/> see ''Calea Layia Sabazia'' * ''Tridax accedens - Calea verticillata'' * ''Tridax ehrenbergii - Sabazia sarmentosa'' * ''Tridax gaillardioides - Layia gaillardioides'' * ''Tridax verticillata - Calea verticillata''
==References== {{Reflist}}
{{Taxonbar|from=Q3310713}}
Category:Millerieae Category:Asteraceae genera Category:Botanical taxa named by Carl Linnaeus {{Millerieae-stub}}