Flower profile
Narrow-leaf mountain trumpet
Collomia linearis
Narrow-leaf mountain trumpet (Collomia linearis) is a flowering plant in the Polemoniaceae family, native in the lower 48 states, blooming mostly June–July across the U.S.
Narrow-leaf mountain trumpet is a wildflower that USDA PLANTS lists as native in the lower 48 states.
*iNaturalist research-grade observations, as of October 17, 2026.
On our lists for: Wyoming
Quick look
Collomia linearis is a species of flowering plant in the phlox family known by the common names tiny trumpet and slenderleaf collomia. This tiny wildflower is native to North America, where it is fairly widespread across the north and west. It is an annual herb, rarely exceeding 30 centimetres (12 in) in height, with a velvety erect stem bearing long, narrow green leaves.
- It belongs to the Polemoniaceae family. iNaturalist
- USDA PLANTS describes it as an herb (forb) with a annual life cycle. USDA PLANTS
- USDA PLANTS lists it as native in the lower 48 states and records it in 32 states. USDA PLANTS
- NatureServe lists it as native to Wyoming. NatureServe
- iNaturalist has 311 research-grade sightings of it in Wyoming, ranking #93 among the 113 flowers on our Wyoming list. iNaturalist
When does it bloom?
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: S5, 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?
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.
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 narrow-leaf mountain trumpet in 32 states.
recorded by USDA PLANTS on our state lists not recorded
See the full list of states
Alaska, Arizona, California, Colorado, Connecticut, Hawaii, Idaho, Illinois, Indiana, Iowa, Maine, Massachusetts, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Dakota, Ohio, Oregon, Pennsylvania, South Dakota, Utah, Vermont, Washington, Wisconsin, Wyoming.
Wyoming counties with USDA records: Albany, Big Horn, Campbell, Carbon, Converse, Crook, Fremont, Hot Springs, Johnson, Laramie, Lincoln, Natrona, Niobrara, Park, Platte, Sheridan, Sublette, Sweetwater, Teton, Washakie, Weston.
Names, range and relatives
Native status by region (USDA PLANTS): Alaska: Introduced; Canada: Native; Hawaii: Introduced; Lower 48 states: Native.
County records: USDA PLANTS lists it in 397 counties across 29 states; the most are in Montana (43), North Dakota (39), Colorado (34).
Other Collomia on Bloomipedia (1): Grand collomia.
More from the Polemoniaceae family (14 on Bloomipedia; most observed first): Blue phlox, Scarlet gilia, Fall phlox, Jacob's ladder, Prairie phlox, Longleaf phlox, Spiny phlox, Sky pilot.
More Wyoming flowers
Sources
- USDA, NRCS. PLANTS Database, profile COLI2.
- iNaturalist, Collomia linearis: taxonomy, research-grade observation counts and “Flowering” annotations, retrieved October 17, 2026.
- Wikipedia, Collomia linearis (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, Collomia linearis (global and state ranks).
- Edibility and toxicity: no source found (marked "not well documented").
- Photo: Daughter Dad via iNaturalist · CC BY 4.0 · resized.