Flower profile

Rose vervain

Glandularia canadensis

Rose vervain (Glandularia canadensis) is a flowering plant in the Verbenaceae family, native in the lower 48 states, blooming mostly March–May across the U.S.

Native in the lower 48

Rose vervain is a wildflower that USDA PLANTS lists as native in the lower 48 states. It's on our flower lists for 4 states, and across the U.S. it's most often seen in bloom in March–May.

29states where USDA records it

4Bloomipedia state lists include it

4,862U.S. sightings*

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

On our lists for: Arkansas, Kansas, Missouri, Oklahoma

Quick look

Verbena canadensis, commonly known as rose mock vervain, rose verbena, clump verbena or rose vervain is a perennial herbaceous flowering plant in the verbena family (Verbenaceae) with showy pink to purple flowers. It is native to the eastern and south-central areas of the United States.
From Wikipedia's article Verbena canadensis, CC BY-SA 4.0.

It belongs to the Verbenaceae 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 29 states. ^{USDA PLANTS}
NatureServe lists it as native to Missouri, Arkansas, Kansas and Oklahoma. ^NatureServe
In Missouri, most iNaturalist sightings of it in flower come in March–May. ^iNaturalist
In Arkansas, most iNaturalist sightings of it in flower come in March–May. ^iNaturalist
iNaturalist has 1,428 research-grade sightings of it in Missouri, ranking #38 among the 177 flowers on our Missouri list. ^iNaturalist
iNaturalist has 1,131 research-grade sightings of it in Arkansas, ranking #27 among the 170 flowers on our Arkansas list. ^iNaturalist
iNaturalist has 433 research-grade sightings of it in Kansas, ranking #58 among the 151 flowers on our Kansas list. ^iNaturalist

When does it bloom?

Flowering records by month across the U.S. (iNaturalist research-grade observations marked “Flowering”) (346 records)

Bloom time in the 4 states whose Bloomipedia list includes it

State	Type	Peak bloom	Sightings*
Missouri	Native	March–May	1,428
Arkansas	Native	March–May	1,131
Kansas	Native	few records (25)	433
Oklahoma	Native	few records (26)	398

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
Missouri: Not listed Not on Missouri Wildlife Code endangered species (3 CSR 10-4.111), plants. NatureServe: SNR, not yet ranked in Missouri. ^{3 CSR 10-4.111}
Arkansas: No list Arkansas has no state law listing endangered or threatened plants, so we show NatureServe's Arkansas ranks instead. NatureServe: SNR, not yet ranked in Arkansas.
Kansas: No list Kansas's endangered and threatened list (K.A.R. 115-15-1) covers animals only, so we show NatureServe's Kansas ranks for plants. NatureServe: S4, apparently secure in Kansas.
Oklahoma: No list Oklahoma has no state law listing endangered or threatened plants, so we show NatureServe's Oklahoma ranks instead. NatureServe: SNR, not yet ranked in Oklahoma.
Rare elsewhere: Other states where NatureServe ranks it rare or missing: KY (S1), NC (S1), SC (S1). (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 rose vervain in 29 states.

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recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Alabama, Arkansas, Colorado, Connecticut, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Michigan, Minnesota, Mississippi, Missouri, Nebraska, New Mexico, New York, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia, Wisconsin.

Missouri counties with USDA records: Adair, Barry, Barton, Bates, Benton, Bollinger, Boone, Butler, Caldwell, Camden, Cape Girardeau, Carter, Cass, Cedar, Christian, Clay, Cole, Cooper, Crawford, Dade, Dallas, Dent, Douglas, Franklin, Gasconade, Greene, Grundy, Harrison, Henry, Hickory, Holt, Howard, Howell, Iron, Jackson, Jasper, Jefferson, Johnson, Laclede, Lafayette, Lawrence, Macon, Madison, Maries, Marion, McDonald, Miller, Moniteau, Montgomery, Morgan, New Madrid, Newton, Oregon, Osage, Ozark, Perry, Pettis, Phelps, Platte, Polk, Pulaski, Ralls, Ray, Reynolds, Ripley, Saline, Scott, Shannon, St. Clair, St. Francois, St. Louis, Ste. Genevieve, Stoddard, Stone, Taney, Texas, Vernon, Warren, Washington, Wayne, Webster, Wright.

Arkansas counties with USDA records: Ashley, Baxter, Benton, Boone, Bradley, Calhoun, Carroll, Chicot, Clark, Cleburne, Columbia, Conway, Crawford, Dallas, Drew, Faulkner, Franklin, Fulton, Garland, Grant, Hempstead, Hot Spring, Howard, Independence, Izard, Jackson, Jefferson, Johnson, Lawrence, Lincoln, Little River, Logan, Madison, Marion, Montgomery, Nevada, Newton, Ouachita, Perry, Pike, Polk, Pope, Prairie, Pulaski, Randolph, Saline, Scott, Searcy, Sebastian, Sevier, Sharp, Stone, Van Buren, Washington, White, Woodruff, Yell.

Kansas counties with USDA records: Allen, Anderson, Atchison, Bourbon, Brown, Butler, Chase, Chautauqua, Cherokee, Clay, Coffey, Cowley, Crawford, Doniphan, Douglas, Elk, Franklin, Geary, Greenwood, Jackson, Jefferson, Johnson, Labette, Leavenworth, Lincoln, Linn, Lyon, Marshall, Miami, Montgomery, Morris, Nemaha, Neosho, Osage, Pottawatomie, Riley, Shawnee, Wabaunsee, Wilson, Woodson, Wyandotte.

Names, range and relatives

Other scientific names (synonyms in USDA PLANTS): Glandularia drummondii, Glandularia lambertii, Verbena canadensis, Verbena lambertii, Verbena ×oklahomensis.

County records: USDA PLANTS lists it in 451 counties across 25 states; the most are in Missouri (82), Arkansas (57), Oklahoma (42).

Other Glandularia on Bloomipedia (2): Dakota mock vervain, Southwestern mock vervain.

More from the Verbenaceae family (14 on Bloomipedia; most observed first): Blue vervain, White vervain, Hoary vervain, Texas vervain, Lantana, Brazilian vervain, Bigbract verbena, Common lantana.

More Missouri flowers

White vervain

Verbena urticifolia

Native

🌼 Few flowering records in MO

Amur honeysuckle

Lonicera maackii

Introduced

🌼 Blooms in MO: April–May

Mayapple

Podophyllum peltatum

Native

🌼 Blooms in MO: April–May

Sources

USDA, NRCS. PLANTS Database, profile GLCA2.
iNaturalist, Glandularia canadensis: taxonomy, research-grade observation counts and “Flowering” annotations, retrieved October 17, 2026.
Wikipedia, Verbena canadensis (lead quoted under CC BY-SA 4.0).
Missouri: Missouri Wildlife Code endangered species (3 CSR 10-4.111), plants.
Missouri: Missouri noxious weed list (2 CSR 70-45.005).
Arkansas: Arkansas State Plant Board noxious weeds and prohibited plants (2 CAR § 50-101).
Kansas: Kansas noxious weeds (K.A.R. 4-8-44, as amended 2026).
Oklahoma: Oklahoma Noxious Weed Law (2 O.S. § 3-220).
USFWS, ECOS species database (ESA listing check), October 17, 2026.
NatureServe Explorer, Glandularia canadensis (global and state ranks).
Edibility and toxicity: NC State Extension.
Photo: Edie via iNaturalist · CC BY 4.0 · resized.