Bloomipedia
Tridax daisy (Tridax procumbens)
Photo: kcthetc1 via iNaturalist · CC0 · resized

Flower profile

Tridax daisy

Tridax procumbens

Tridax daisy (Tridax procumbens) is a flowering plant in the Asteraceae family, introduced in the lower 48 states, blooming mostly April–September across the U.S.

Not native to Hawaii

Tridax daisy is a wildflower that USDA PLANTS lists as introduced in the lower 48 states.

2states where USDA records it
689HI sightings*
4,651U.S. sightings*

*iNaturalist research-grade observations, as of October 17, 2026.

On our lists for: Hawaii

Quick look

Tridax procumbens, commonly known as coatbuttons or tridax daisy, is a species of flowering plant in the family Asteraceae. It is best known as a widespread weed and pest plant. It is native to the tropical Americas including Mexico, but it has been introduced to tropical, subtropical, and mild temperate regions worldwide. It is listed as a noxious weed in the United States and has pest status in nine states.

  • It belongs to the Asteraceae family. iNaturalist
  • USDA PLANTS describes it as an herb (forb) with a perennial life cycle. USDA PLANTS
  • USDA PLANTS lists it as introduced in the lower 48 states and records it in 2 states. USDA PLANTS
  • NatureServe lists it as not native to Hawaii. NatureServe
  • iNaturalist has 689 research-grade sightings of it in Hawaii, ranking #69 among the 118 flowers on our Hawaii list. iNaturalist

When does it bloom?

Flowering records by month in Hawaii (iNaturalist research-grade observations marked “Flowering”) (33 records)

Conservation status

Federal (U.S. ESA)
Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
NatureServe global
GNR Not yet ranked worldwide. NatureServe
Hawaii
Not listed Not on Hawaii threatened and endangered plants (HAR 13-107; the state list follows the federal list), DLNR Division of Forestry and Wildlife. NatureServe: SNA, not applicable (usually because it isn't native there) in Hawaii. HAR 13-107
Rare elsewhere
No other U.S. state ranks it S1, S2, SH or SX.

Checked October 17, 2026. Rankings and lists can change, so follow the links for the latest.

Can you eat it?

For peopleNot well documented

None of the sources we checked (NC State Extension (no page for this plant), USDA PLANTS) say whether it's edible or poisonous for people.

For petsNot well documented

It isn't on the ASPCA plant list.

🌿 Never eat a wild plant unless you're certain of its ID; this isn't medical advice. Worried about a person? Call Poison Control at 1-800-222-1222. Worried about a pet? Call your vet.

Where does it grow?

USDA PLANTS records tridax daisy in 2 states.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Florida, Hawaii.

Hawaii counties with USDA records: Hawaii, Honolulu, Kauai, Maui.

Names, range and relatives

Native status by region (USDA PLANTS): Hawaii: Introduced; Lower 48 states: Introduced; Navassa Island: Introduced; Pacific Basin (excluding Hawaii): Introduced; Puerto Rico: Introduced; U.S. Virgin Islands: Introduced.

County records: USDA PLANTS lists it in 36 counties across 4 states; the most are in Florida (18), Palau (12), Hawaii (4).

More from the Asteraceae family (212 on Bloomipedia; most observed first): Common yarrow, Goldenrods, White snakeroot, Sunflowers, Chicory, Black-eyed Susan, Bull thistle, Common dandelion.

More Hawaii flowers

Trailing daisy (Sphagneticola trilobata)

Trailing daisy

Sphagneticola trilobata

Introduced

🌼 Blooms in HI: June–December
'āhinahina (Argyroxiphium sandwicense)

'āhinahina

Argyroxiphium sandwicense

Native

🌼 Blooms in HI: June–September
Red tasselflower (Emilia fosbergii)

Red tasselflower

Emilia fosbergii

Introduced

🌼 Blooms in HI: January–March

Sources