Bloomipedia
Eastern Joshua tree (Yucca jaegeriana)
Photo: CK2AZ via iNaturalist · CC BY 4.0 · resized

Flower profile

Eastern Joshua tree

Yucca jaegeriana

Eastern Joshua tree is a flowering plant. It's on our flower lists for 2 states, and across the U.S. it's most often seen in bloom in February–May.

–states
2of our state lists
10,990U.S. sightings*

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

On our lists for: Arizona, Nevada

Quick look

Yucca brevifolia, commonly known as the Joshua tree, yucca palm, tree yucca, or palm tree yucca, is a plant species belonging to the genus Yucca.

  • It belongs to the Asparagaceae family. iNaturalist
  • NatureServe lists it as native to Nevada and Arizona. NatureServe
  • In Nevada, most iNaturalist sightings of it in flower come in February–May. iNaturalist
  • In Arizona, most iNaturalist sightings of it in flower come in February–April. iNaturalist
  • iNaturalist has 7,017 research-grade sightings of it in Nevada, ranking #2 among the 110 flowers on our Nevada list. iNaturalist
  • iNaturalist has 1,550 research-grade sightings of it in Arizona, ranking #58 among the 109 flowers on our Arizona list. iNaturalist

Eastern Joshua tree gift ideas

Handmade eastern joshua tree gifts from independent makers.

When does it bloom?

Flowering records by month across the U.S. (iNaturalist research-grade observations marked “Flowering”) (575 records)
Bloom time in each of our 2 states
StateTypePeak bloomSightings*
NevadaNativeFebruary–May7,017
ArizonaNativeFebruary–April1,550

Conservation status

Federal (U.S. ESA)
Not listed Not listed under the Endangered Species Act. USFWS ECOS does track it with the label “Not Listed,” which is informal and gives no legal protection. USFWS ECOS
NatureServe global
G3 Vulnerable worldwide. NatureServe
Nevada
Not listed Not on Nevada fully protected plants, critically endangered (NAC 527.010). NatureServe: S3, vulnerable in Nevada. NAC 527.010
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: S3, vulnerable in Arizona. AAC R3-3 App. A
Rare elsewhere
Other states where NatureServe ranks it rare or missing: UT (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.

Please leave it where it grows

Please don't pick or dig this flower: NatureServe ranks it S3 in Nevada and S3 in Arizona. NatureServe

Can you eat it?

For peopleNot well documented

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

For petsToxic to dogs, cats and horses

ASPCA's entry “Yucca” (Yucca spp), which covers the whole genus, lists it as toxic to dogs, cats and horses. Signs include: Dogs, cats: Vomiting; Horses: liver disease… 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 has no state-by-state distribution for this name, so we can't map it yet.

More Nevada flowers

Sources