Bloomipedia
American threefold (Trixis californica)
Photo: Anders Hastings via iNaturalist · CC BY 4.0 · resized

Flower profile

American threefold

Trixis californica

Native to Arizona

American threefold is a flowering plant that USDA PLANTS lists as native in the lower 48 states. In Arizona it's most often seen in bloom in January–May.

4states
1,982AZ sightings*
4,659U.S. sightings*

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

On our lists for: Arizona

Quick look

Trixis californica, the American threefold or American trixis, is a species of flowering plant in the family Asteraceae. It is native to North America.

  • It belongs to the Asteraceae family. iNaturalist
  • USDA PLANTS describes it as a shrub / a subshrub with a perennial life cycle. USDA PLANTS
  • USDA PLANTS lists it as native in the lower 48 states and records it in 4 states. USDA PLANTS
  • NatureServe lists it as native to Arizona. NatureServe
  • In Arizona, most iNaturalist sightings of it in flower come in January–May. iNaturalist
  • iNaturalist has 1,982 research-grade sightings of it in Arizona, ranking #47 among the 109 flowers on our Arizona list. iNaturalist

American threefold gift ideas

Handmade american threefold gifts from independent makers.

🌱 Sample spot. Handmade gift picks from independent shops will appear here once our shop partnership is approved. These cards are placeholders, not real products.

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    American threefold art print

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When does it bloom?

In Arizona, most flowering sightings come in January–May.

Flowering records by month in Arizona (iNaturalist research-grade observations marked “Flowering”) (206 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
Arizona
Not listed Not on Arizona Native Plant Law protected plants (Ariz. Admin. Code R3-3 Art. 11, App. A, eff. Feb. 2, 2025). NatureServe: SNR, not yet ranked in Arizona. AAC R3-3 App. A
Rare elsewhere
Other states where NatureServe ranks it rare or missing: NV (S1). (S1 critically imperiled, S2 imperiled, SH possibly extirpated, SX presumed extirpated.)

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 American threefold in 4 states.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Arizona, California, New Mexico, Texas.

Arizona counties with USDA records: Cochise, Coconino, Gila, Graham, Greenlee, La Paz, Maricopa, Mohave, Pima, Pinal, Yavapai, Yuma.

More Arizona flowers

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Brittlebush (Encelia farinosa)

Brittlebush

Encelia farinosa

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🌼 Blooms in AZ: January–December
Common sunflower (Helianthus annuus)

Common sunflower

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🌷 Garden flower

🌼 Blooms in AZ: June–October

Sources