Flower profile

Greene's mountain ash

Sorbus scopulina

Greene's mountain ash (Sorbus scopulina) is a shrub or small tree in the Rosaceae family, native in the lower 48 states, blooming mostly June–July across the U.S.

Native to Wyoming

Greene's mountain ash is a flowering plant that USDA PLANTS lists as native in the lower 48 states.

14states where USDA records it

278WY sightings*

2,198U.S. sightings*

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

On our lists for: Wyoming

Quick look

Sorbus scopulina, also known as Greene's mountain-ash, is a North American species of rowan within the rose family. Although it may resemble poisonous species of baneberries, its own fruits are edible.
From Wikipedia's article Sorbus scopulina, CC BY-SA 4.0.

It belongs to the Rosaceae family. ^iNaturalist
USDA PLANTS describes it as a shrub / a tree with a perennial life cycle. ^{USDA PLANTS}
USDA PLANTS lists it as native in the lower 48 states and records it in 14 states. ^{USDA PLANTS}
NatureServe lists it as native to Wyoming. ^NatureServe
USDA PLANTS lists its flower color as white. ^{USDA PLANTS}
USDA PLANTS gives its bloom period as summer. ^{USDA PLANTS}
USDA PLANTS lists a mature height of about 12 ft. ^{USDA PLANTS}
iNaturalist has 278 research-grade sightings of it in Wyoming, ranking #101 among the 113 flowers on our Wyoming list. ^iNaturalist

When does it bloom?

Flowering records by month across the U.S. (iNaturalist research-grade observations marked “Flowering”) (66 records)

There are only a handful of Wyoming flowering records, so this chart uses records from across the U.S.

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
Wyoming: No list Wyoming has no state law listing endangered or threatened plants, so we show NatureServe's Wyoming ranks instead. NatureServe: S4, apparently secure in Wyoming.
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 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 greene's mountain ash in 14 states.

AKMEVTNHWAIDMTNDMNILWIMINYRIMAORNVWYSDIAINOHPANJCTCAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFL

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Alaska, Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, North Dakota, Oregon, South Dakota, Utah, Washington, Wyoming.

Wyoming counties with USDA records: Albany, Carbon, Converse, Crook, Fremont, Johnson, Lincoln, Natrona, Park, Sheridan, Teton.

Growing conditions

USDA PLANTS gives Greene's mountain ash a medium shade tolerance, none drought tolerance and medium moisture use. It is rated for soil pH 5.6 to 7.3 and winter lows down to -3 °F.

Shade tolerance: Medium
Drought tolerance: None
Moisture use: Medium
Soil textures it is adapted to: coarse, medium
Soil pH range: 5.6 to 7.3
Minimum temperature tolerated: -3 °F
Frost-free days needed (minimum): 120
Annual precipitation range: 10 to 60 inches
Minimum root depth: 12 inches
Salinity tolerance: None
Fertility requirement: Medium
Growth rate: Moderate
Lifespan: Moderate
Active growth period: Spring and Summer
Fruit or seed: Red · Summer to Fall
Can be propagated by: bare root, container, cuttings, seed
Commercial availability: Contracting Only

From the USDA PLANTS characteristics data for SOSC2. USDA ratings are general guidance for the species, not a guarantee for your garden.

Names, range and relatives

Native status by region (USDA PLANTS): Alaska: Native; Canada: Native; Lower 48 states: Native.

County records: USDA PLANTS lists it in 162 counties across 13 states; the most are in Idaho (26), Oregon (19), Utah (19).

Other Sorbus on Bloomipedia (1): European mountain ash.

More from the Rosaceae family (103 on Bloomipedia; most observed first): Roses (genus Rosa), Multiflora rose, Mock strawberry, Black cherry, Toyon, Thimbleberry, Wineberry, Black raspberry.

More Wyoming flowers

Prairie smoke

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Shrubby cinquefoil

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Thimbleberry

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Sources

USDA, NRCS. PLANTS Database, profile SOSC2.
iNaturalist, Sorbus scopulina: taxonomy, research-grade observation counts and “Flowering” annotations, retrieved October 17, 2026.
Wikipedia, Sorbus scopulina (lead quoted under CC BY-SA 4.0).
Wyoming: Wyoming state designated noxious weeds (W.S. 11-5-102(a)(xi)), as listed by the Wyoming Weed & Pest Council.
USFWS, ECOS species database (ESA listing check), October 17, 2026.
NatureServe Explorer, Sorbus scopulina (global and state ranks).
Edibility and toxicity: no source found (marked "not well documented").
Photo: John Brew via iNaturalist · CC BY 4.0 · resized.