Bloomipedia
Thinleaf huckleberry (Vaccinium membranaceum)
Photo: Sean Haight via iNaturalist · CC0 · resized

Flower profile

Thinleaf huckleberry

Vaccinium membranaceum

Native to Montana

Thinleaf huckleberry is a flowering plant that USDA PLANTS lists as native in the lower 48 states.

12states
529MT sightings*
3,096U.S. sightings*

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

On our lists for: Montana

Quick look

Vaccinium membranaceum is a species of flowering plant in the heath family Ericaceae, known by the common names thinleaf huckleberry, tall huckleberry, big huckleberry, mountain huckleberry, square-twig blueberry, and "black huckleberry".

  • It belongs to the Ericaceae family. iNaturalist
  • USDA PLANTS describes it as a shrub with a perennial life cycle. USDA PLANTS
  • USDA PLANTS lists it as native in the lower 48 states and records it in 12 states. USDA PLANTS
  • NatureServe lists it as native to Montana. NatureServe
  • USDA PLANTS lists its flower color as purple. USDA PLANTS
  • USDA PLANTS gives its bloom period as late spring. USDA PLANTS
  • USDA PLANTS lists a mature height of about 4.5 ft. USDA PLANTS
  • iNaturalist has 529 research-grade sightings of it in Montana, ranking #84 among the 109 flowers on our Montana list. iNaturalist

Thinleaf huckleberry gift ideas

Handmade thinleaf huckleberry gifts from independent makers.

When does it bloom?

Flowering records by month across the U.S. (iNaturalist research-grade observations marked “Flowering”) (56 records)

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

Conservation status

Federal (U.S. ESA)
Not listed Not listed under the Endangered Species Act. USFWS ECOS does track it with the label “Resolved Taxon,” which is informal and gives no legal protection. USFWS ECOS
NatureServe global
G5 Secure worldwide. NatureServe
Montana
No list Montana has no state law listing endangered or threatened plants, so we show NatureServe's Montana ranks instead. NatureServe: S5, secure in Montana.
Rare elsewhere
Other states where NatureServe ranks it rare or missing: CO (S1), SD (S2), UT (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?

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 thinleaf huckleberry in 12 states.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Arizona, California, Colorado, Idaho, Michigan, Minnesota, Montana, Oregon, South Dakota, Utah, Washington, Wyoming.

Montana counties with USDA records: Carbon, Cascade, Fergus, Flathead, Gallatin, Glacier, Lincoln, Meagher, Mineral, Missoula, Powell, Ravalli, Sanders, Stillwater.

More Montana flowers

Sources