Bloomipedia
Western roseroot (Rhodiola integrifolia)
Photo: Loren Cassin Sackett via iNaturalist · CC BY 4.0 · resized

Flower profile

Western roseroot

Rhodiola integrifolia

Native in the lower 48

Western roseroot is a wildflower that USDA PLANTS lists as native in the lower 48 states. It's on our flower lists for 2 states, and across the U.S. it's most often seen in bloom in June–August.

13states
2of our state lists
5,514U.S. sightings*

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

On our lists for: Alaska, Colorado

Quick look

Rhodiola integrifolia is a species of flowering plant in the stonecrop family known by the common names ledge stonecrop, western roseroot, and king's crown. It is native to north-easternmost Russia, including Kamchatka, and western North America, where it grows in mountainous habitat in subalpine and alpine climates, including meadows, cliffs, and talus.

  • It belongs to the Crassulaceae 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 13 states. USDA PLANTS
  • NatureServe lists it as native to Colorado and Alaska. NatureServe
  • In Colorado, most iNaturalist sightings of it in flower come in June–August. iNaturalist
  • In Alaska, most iNaturalist sightings of it in flower come in June–July. iNaturalist
  • iNaturalist has 2,946 research-grade sightings of it in Colorado, ranking #50 among the 110 flowers on our Colorado list. iNaturalist
  • iNaturalist has 939 research-grade sightings of it in Alaska, ranking #48 among the 108 flowers on our Alaska list. iNaturalist

Western roseroot gift ideas

Handmade western roseroot gifts from independent makers.

When does it bloom?

Flowering records by month across the U.S. (iNaturalist research-grade observations marked “Flowering”) (302 records)
Bloom time in each of our 2 states
StateTypePeak bloomSightings*
ColoradoNativeJune–August2,946
AlaskaNativeJune–July939

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
Colorado
No list Colorado has no state law listing endangered or threatened plants, so we show NatureServe's Colorado ranks instead. NatureServe: S4, apparently secure in Colorado.
Alaska
No list Alaska has no state law listing endangered or threatened plants, so we show NatureServe's Alaska ranks instead. NatureServe: SNR, not yet ranked in Alaska.
Rare elsewhere
Other states where NatureServe ranks it rare or missing: MN (S1), SD (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 Western roseroot in 13 states.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Alaska, California, Colorado, Idaho, Minnesota, Montana, Nevada, New Mexico, New York, Oregon, Utah, Washington, Wyoming.

Colorado counties with USDA records: Boulder, Chaffee, Clear Creek, Dolores, Eagle, El Paso, Garfield, Gilpin, Grand, Gunnison, Hinsdale, La Plata, Lake, Larimer, Las Animas, Mesa, Mineral, Montezuma, Ouray, Park, Pitkin, Rio Grande, Routt, San Juan, San Miguel, Summit.

Alaska counties with USDA records: Aleutians East, Anchorage, Bethel, Chugach, Copper River, Denali, Dillingham, Haines, Juneau, Kenai Peninsula, Ketchikan Gateway, Kodiak Island, Lake and Peninsula, Matanuska-Susitna, Nome, North Slope, Northwest Arctic, Sitka, Southeast Fairbanks, Yakutat, Yukon-Koyukuk.

More Colorado flowers

Sources