Bloomipedia
Mountain bog gentian (Gentiana calycosa)
Photo: Tom Field via iNaturalist · CC BY 4.0 · resized

Flower profile

Mountain bog gentian

Gentiana calycosa

Native to Montana

Mountain bog gentian is a wildflower that USDA PLANTS lists as native in the lower 48 states. In Montana it's most often seen in bloom in July–September.

8states
646MT sightings*
4,193U.S. sightings*

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

On our lists for: Montana

Quick look

Gentiana calycosa is a species of flowering plant in the family Gentianaceae. It is a herbaceous perennial gentian known by the common names explorer's gentian, Rainier pleated gentian, and mountain bog gentian.

  • It belongs to the Gentianaceae 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 8 states. USDA PLANTS
  • NatureServe lists it as native to Montana. NatureServe
  • In Montana, most iNaturalist sightings of it in flower come in July–September. iNaturalist
  • USDA PLANTS lists its flower color as blue. USDA PLANTS
  • USDA PLANTS gives its bloom period as late summer. USDA PLANTS
  • USDA PLANTS lists a mature height of about 0.6 ft. USDA PLANTS
  • iNaturalist has 646 research-grade sightings of it in Montana, ranking #66 among the 109 flowers on our Montana list. iNaturalist

Mountain bog gentian gift ideas

Handmade mountain bog gentian gifts from independent makers.

When does it bloom?

In Montana, most flowering sightings come in July–September.

Flowering records by month in Montana (iNaturalist research-grade observations marked “Flowering”) (120 records)

Conservation status

Federal (U.S. ESA)
Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
NatureServe global
GNR Not yet ranked worldwide. NatureServe
Montana
No list Montana has no state law listing endangered or threatened plants, so we show NatureServe's Montana ranks instead. NatureServe: S4, apparently secure in Montana.
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 mountain bog gentian in 8 states.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

California, Idaho, Montana, Nevada, Oregon, Utah, Washington, Wyoming.

Montana counties with USDA records: Beaverhead, Flathead, Gallatin, Glacier, Lewis and Clark, Missoula, Park, Powell, Ravalli, Teton.

More Montana flowers

Sources