Bloomipedia
Narrowleaf cow wheat (Melampyrum lineare)
Photo: Lynn Harper via iNaturalist · CC0 · resized

Flower profile

Narrowleaf cow wheat

Melampyrum lineare

Native to Rhode Island

Narrowleaf cow wheat is a wildflower that USDA PLANTS lists as native in the lower 48 states.

27states
187RI sightings*
8,111U.S. sightings*

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

On our lists for: Rhode Island

Quick look

Melampyrum lineare, commonly called the narrowleaf cow wheat, is an herbaceous plant in the family Orobanchaceae. It is native to North America, where it is found in southern Canada and the northern United States, with an extension south in the Appalachian Mountains. It has a wide habitat tolerance, but is usually found in dry, acidic soil and somewhat exposed woodlands.

  • It belongs to the Orobanchaceae 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 27 states. USDA PLANTS
  • NatureServe lists it as native to Rhode Island. NatureServe
  • iNaturalist has 187 research-grade sightings of it in Rhode Island, ranking #86 among the 110 flowers on our Rhode Island list. iNaturalist

Narrowleaf cow wheat gift ideas

Handmade narrowleaf cow wheat gifts from independent makers.

When does it bloom?

Flowering records by month in Rhode Island (iNaturalist research-grade observations marked “Flowering”) (15 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
G5 Secure worldwide. NatureServe
Rhode Island
Not listed Not on Rhode Island Rare Plants 2016 (RI Natural History Survey, from the RI Wildlife Action Plan; informational, Rhode Island has no state plant-protection listing law). NatureServe: SNR, not yet ranked in Rhode Island. RI rare plants 2016
Rare elsewhere
Other states where NatureServe ranks it rare or missing: IL (SX), IN (S1), SC (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 edibility or poison notes on its page), USDA PLANTS) say whether it's edible or poisonous for people. NC State Extension

For petsNot well documented

It isn't on the ASPCA plant list, and NC State Extension doesn't flag it for pets.

🌿 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 narrowleaf cow wheat in 27 states plus Washington, D.C.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Connecticut, Delaware, Georgia, Idaho, Illinois, Indiana, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Montana, New Hampshire, New Jersey, New York, North Carolina, Ohio, Pennsylvania, Rhode Island, South Carolina, Tennessee, Vermont, Virginia, Washington, West Virginia, Wisconsin; District of Columbia.

Rhode Island counties with USDA records: Bristol, Kent, Providence, Washington.

More Rhode Island flowers

Sources