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Coatbuttons, Tridax Daisy, Tridax, Cadillo Chisaca - Tridax procumbens


Family: Asteraceae - Aster family Genus Common Name: Tridax Native Status: IntroducedDicot Perennial Herb
Tridax procumbens - Coatbuttons, Tridax Daisy, Tridax, Cadillo Chisaca. This tropical plant is an invasive weed, listed federally and by 9 states. While the USDA lists it as found in the United States only in Florida and Hawaii (as well as in Puerto Rico and the Virgin Islands), 7 other states have it listed as an invasive or noxious weed, so presumably it is found in those states as well. Tridax procumbens is the only Tridax species found in the United States.

Found in:
AL, CA, FL, HI, MA, MN, NC, OR, SC, TX, VT

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Tridax procumbens

Distribution of Tridax procumbens in the United States and Canada:
Map unavailable.
Map courtesy of The Biota of North America Program.
Map color key

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Site: Sarasota County, FL Date: 2011-December-18Photographer: Gerald C. Williamson
Nikon D7000
Tamron SP 90MM f/2.8 AF Macro
Coatbuttons may bloom year round. It normally has 3 to 8 ray florets, although there may be none, or as many as 13. The blossom is around an inch across.
Tridax procumbens
Site: Sarasota County, FL Date: 2011-December-18Photographer: Gerald C Williamson
Nikon D7000
Click on the photo for a larger image
Tridax procumbens
Site: Sarasota County, FL Date: 2011-December-18Photographer: Gerald C Williamson
Nikon D60
Tridax may grow to be 15 to 18 inches tall, sometimes taller.
Click on the photo for a larger image
Tridax procumbens
References used for identification and information:
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Tridax procumbens initially published on USWildflowers.com 2012-02-20; Updated 2015-06-24

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All content except USDA Plants Database map Copyright Gerald C. Williamson 2024
Photographs Copyright owned by the named photographer



Code Update 20230302