BugwoodWiki Article

coat buttons
Tridax procumbens L.

Overview

Appearance
Tridax procumbens is a perennial herb that has a creeping stem which can reach from to 8-30 inches (20-75 cm) long.
Foliage
The leaves of Tridax procumbens are opposite, pinnate, oblong to ovate, and 1-2 inches (2.5-5 cm) long with cuneate bases, coarsely serrate margins, and acute apexes.
Flowers
Tridax procumbens flowers have white rays and yellow disk flowers. They are about 0.4-0.6 inches (1-1.5 cm) wide, and held on a 4-12 inches (10-30 cm) long stalk. Flowering occurs in spring.
Fruit
Fruits are achenes that are dark brown to black in color, oblong, and 0.08 inches (2 mm) long, each with a head of pappus bristles that vary from 0.12-0.24 inches (3-6 mm) long.
Ecological Threat
Tridax procumbens is listed as a Federal Noxious Weed. It prefers coarse-textured soils in more tropical locations. It invades roadsides, crops, waste land, and fallow land. It is native to Mexico and South America, but has become an invasive problem around the world.

Selected Images


5419023
5419023

coat buttons
Tridax procumbens
Seed(s)
Forest and Kim Starr
5419021
5419021

coat buttons
Tridax procumbens
Plant(s)
Forest and Kim Starr
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5419019

coat buttons
Tridax procumbens
Plant(s)
Forest and Kim Starr
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5417981

coat buttons
Tridax procumbens
Plant(s)
Forest and Kim Starr
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1149002

coat buttons
Tridax procumbens
Plant(s)
USDA APHIS PPQ Archive
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5417982

coat buttons
Tridax procumbens
Foliage
Forest and Kim Starr
5417985
5417985

coat buttons
Tridax procumbens
Foliage
Forest and Kim Starr
5417983
5417983

coat buttons
Tridax procumbens
Flower(s)
Forest and Kim Starr
5419024
5419024

coat buttons
Tridax procumbens
Seed(s)
Forest and Kim Starr
0015020
0015020

coat buttons
Tridax procumbens
Seed(s)
USDA APHIS PPQ Archive
0015021
0015021

coat buttons
Tridax procumbens
Seed(s)
USDA APHIS PPQ Archive
5376870
5376870

coat buttons
Tridax procumbens
Fruit(s)
Julia Scher

Maps


EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

EDDMapS Distribution

State Regulated List - This map identifies those states that list this species on their regulated list. For more information, visit Invasive.org

State Regulated List

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Subclass: Asteridae
Order: Asterales
Family: Asteraceae
Genus: Tridax

Other System Links

Plants: TRPR5
Bayer: TRQPR
GRIN: 40146
ITIS: 38575
NPDN Pest: PBFEOBA
NPDN Host: 37140

Synonyms and Other Names

Other Common Names:
coatbuttons, cadillo chisaca, coat buttons, tridax

Categories

Category: Forbs/Herbs
Category: Shrub or Subshrub