Flower profile
White mariposa lily
Calochortus eurycarpus
White mariposa lily is a wildflower that USDA PLANTS lists as native in the lower 48 states. In Idaho it's most often seen in bloom in June–August.
*iNaturalist research-grade observations, as of October 17, 2026.
On our lists for: Idaho
Quick look
Calochortus eurycarpus is a North American species of flowering plant in the lily family. It is native to the western United States: Montana, Idaho, eastern Oregon, western Wyoming, northeastern Nevada and southeastern Washington.
- It belongs to the Liliaceae family. iNaturalist
- USDA PLANTS describes it as an herb (forb) with a perennial life cycle. USDA PLANTS
- USDA PLANTS lists it as native in the lower 48 states and records it in 7 states. USDA PLANTS
- NatureServe lists it as native to Idaho. NatureServe
- In Idaho, most iNaturalist sightings of it in flower come in June–August. iNaturalist
- iNaturalist has 1,483 research-grade sightings of it in Idaho, ranking #9 among the 109 flowers on our Idaho list. iNaturalist
White mariposa lily gift ideas
Handmade white mariposa lily 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.
-
Placeholder
White mariposa lily art print
-
Placeholder
White mariposa lily greeting card
-
Placeholder
White mariposa lily mug
-
Placeholder
White mariposa lily earrings
-
Placeholder
White mariposa lily embroidery pattern
-
Placeholder
White mariposa lily sticker
When does it bloom?
In Idaho, most flowering sightings come in June–August.
Conservation status
- Federal (U.S. ESA)
- Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
- NatureServe global
- G4 Apparently secure worldwide. NatureServe
- Idaho
- No list Idaho has no state law listing endangered or threatened plants, so we show NatureServe's Idaho ranks instead. NatureServe: SNR, not yet ranked in Idaho.
- Rare elsewhere
- Other states where NatureServe ranks it rare or missing: NV (S2), UT (S1), WY (S2). (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?
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.
ASPCA's entry “Calochortus nuttalli” (Calochortus spp), which covers the whole genus, lists it as non-toxic to dogs, cats and horses. Eating lots of any plant can still upset a pet's stomach. 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 white mariposa lily in 7 states.
recorded by USDA PLANTS on our state lists not recorded
See the full list of states
Idaho, Montana, Nevada, Oregon, Utah, Washington, Wyoming.
Idaho counties with USDA records: Ada, Adams, Bannock, Blaine, Boise, Bonneville, Butte, Camas, Caribou, Cassia, Clark, Custer, Elmore, Fremont, Gem, Gooding, Idaho, Latah, Lemhi, Valley, Washington.
More Idaho flowers
Sources
- USDA, NRCS. PLANTS Database, profile CAEU.
- iNaturalist, Calochortus eurycarpus: taxonomy, research-grade observation counts and “Flowering” annotations, retrieved October 17, 2026.
- Wikipedia, Calochortus eurycarpus (lead quoted under CC BY-SA 4.0).
- Idaho: Idaho noxious weeds (IDAPA 02.06.09, Section 220).
- USFWS, ECOS species database (ESA listing check), October 17, 2026.
- NatureServe Explorer, Calochortus eurycarpus (global and state ranks).
- Edibility and toxicity: ASPCA.
- Photo: Kevin Faccenda via iNaturalist · CC BY 4.0 · resized.