Bloomipedia
Threadleaf groundsel (Senecio flaccidus)
Photo: Michael Pirrello via iNaturalist · CC BY 4.0 · resized

Flower profile

Threadleaf groundsel

Senecio flaccidus

Native to New Mexico

Threadleaf groundsel is a wildflower that USDA PLANTS lists as native in the lower 48 states. In New Mexico it's most often seen in bloom in April–October.

9states
744NM sightings*
3,521U.S. sightings*

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

On our lists for: New Mexico

Quick look

Senecio flaccidus, also known as threadleaf ragwort, is a member of the daisy family. It is native from central to southwest North America, where it is common in gravelly and dry areas.

  • It belongs to the Asteraceae family. iNaturalist
  • USDA PLANTS describes it as an herb (forb) / a subshrub with a perennial life cycle. USDA PLANTS
  • USDA PLANTS lists it as native in the lower 48 states and records it in 9 states. USDA PLANTS
  • NatureServe lists it as native to New Mexico. NatureServe
  • In New Mexico, most iNaturalist sightings of it in flower come in April–October. iNaturalist
  • iNaturalist has 744 research-grade sightings of it in New Mexico, ranking #79 among the 109 flowers on our New Mexico list. iNaturalist

Threadleaf groundsel gift ideas

Handmade threadleaf groundsel gifts from independent makers.

When does it bloom?

In New Mexico, most flowering sightings come in April–October.

Flowering records by month in New Mexico (iNaturalist research-grade observations marked “Flowering”) (60 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
G5 Secure worldwide. NatureServe
New Mexico
Not listed Not on New Mexico state endangered plant species (19.21.2.9 NMAC). NatureServe: SNR, not yet ranked in New Mexico. 19.21.2.9 NMAC
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 petsToxic to dogs, cats and horses

ASPCA's entry “Golden Ragwort” (Senecio species), which covers the whole genus, lists it as toxic to dogs, cats and horses. Signs include: Horses: liver disease (must be ingested in large amount or over a long time… ASPCA

🌿 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 threadleaf groundsel in 9 states.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Arizona, California, Colorado, Kansas, Nevada, New Mexico, Oklahoma, Texas, Utah.

New Mexico counties with USDA records: Bernalillo, Catron, Chaves, Cibola, Curry, De Baca, Dona Ana, Eddy, Grant, Guadalupe, Harding, Hidalgo, Lea, Lincoln, Los Alamos, Luna, McKinley, Mora, Otero, Quay, Rio Arriba, Roosevelt, San Juan, San Miguel, Sandoval, Santa Fe, Sierra, Socorro, Taos, Torrance, Union, Valencia.

More New Mexico flowers

Sources