Bloomipedia
Hairy cluster-vine (Jacquemontia tamnifolia)
Photo: gr0mmy via iNaturalist · CC BY 4.0 · resized

Flower profile

Hairy cluster-vine

Jacquemontia tamnifolia

Hairy cluster-vine (Jacquemontia tamnifolia) is a vine in the Convolvulaceae family, native in the lower 48 states, blooming mostly August–October across the U.S.

Native in the lower 48

Hairy cluster-vine is a wildflower that USDA PLANTS lists as native in the lower 48 states. It's on our flower lists for 3 states, and across the U.S. it's most often seen in bloom in August–October.

16states where USDA records it
3Bloomipedia state lists include it
3,950U.S. sightings*

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

On our lists for: Alabama, Louisiana, Mississippi

Quick look

Jacquemontia tamnifolia, the common jacquemontia, is a herbaceous, annual, twining vine found throughout the Americas.

  • It belongs to the Convolvulaceae family. iNaturalist
  • USDA PLANTS describes it as an herb (forb) / a vine with a annual life cycle. USDA PLANTS
  • USDA PLANTS lists it as native in the lower 48 states and records it in 16 states. USDA PLANTS
  • NatureServe lists it as native to Alabama, Louisiana and Mississippi. NatureServe
  • In Alabama, most iNaturalist sightings of it in flower come in August–October. iNaturalist
  • In Louisiana, most iNaturalist sightings of it in flower come in August–October. iNaturalist
  • iNaturalist has 1,112 research-grade sightings of it in Alabama, ranking #42 among the 167 flowers on our Alabama list. iNaturalist
  • iNaturalist has 514 research-grade sightings of it in Louisiana, ranking #69 among the 154 flowers on our Louisiana list. iNaturalist
  • iNaturalist has 359 research-grade sightings of it in Mississippi, ranking #75 among the 154 flowers on our Mississippi list. iNaturalist

When does it bloom?

Flowering records by month across the U.S. (iNaturalist research-grade observations marked “Flowering”) (535 records)
Bloom time in the 3 states whose Bloomipedia list includes it
StateTypePeak bloomSightings*
AlabamaNativeAugust–October1,112
LouisianaNativeAugust–October514
MississippiNativeAugust–October359

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
Alabama
No list Alabama has no state law listing endangered or threatened plants, so we show NatureServe's Alabama ranks instead. NatureServe: SNR, not yet ranked in Alabama.
Louisiana
No list Louisiana has no state list of endangered or threatened plants separate from the federal list, so we show federal status and NatureServe's Louisiana ranks. NatureServe: SNR, not yet ranked in Louisiana.
Mississippi
No list Mississippi has no state law listing endangered or threatened plants, so we show NatureServe's Mississippi ranks instead. NatureServe: SNR, not yet ranked in Mississippi.
Rare elsewhere
Other states where NatureServe ranks it rare or missing: OK (SH). (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 hairy cluster-vine in 16 states.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Alabama, Arkansas, Florida, Georgia, Illinois, Louisiana, Mississippi, Missouri, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia.

Alabama counties with USDA records: Autauga, Baldwin, Barbour, Bibb, Chambers, Choctaw, Clarke, Cleburne, Coffee, Conecuh, Covington, Escambia, Greene, Hale, Henry, Houston, Jefferson, Lee, Macon, Mobile, Monroe, Montgomery, Perry, Pike, Randolph, Shelby, St. Clair, Talladega, Tuscaloosa, Walker, Wilcox.

Louisiana counties with USDA records: Acadia, Allen, Ascension, Assumption, Avoyelles, Beauregard, Bienville, Bossier, Caddo, Calcasieu, Caldwell, Cameron, Catahoula, Claiborne, De Soto, East Baton Rouge, East Feliciana, Evangeline, Franklin, Grant, Iberia, Iberville, Jackson, Jefferson, Jefferson Davis, LaSalle, Lafayette, Lafourche, Lincoln, Livingston, Madison, Morehouse, Orleans, Ouachita, Rapides, Red River, Richland, Sabine, St. Charles, St. Helena, St. Landry, St. Martin, St. Mary, St. Tammany, Tangipahoa, Tensas, Terrebonne, Union, Vermilion, Vernon, Washington, Webster, West Baton Rouge, West Feliciana, Winn.

Mississippi counties with USDA records: Amite, Clarke, Covington, Forrest, Harrison, Hinds, Kemper, Lafayette, Lauderdale, Madison, Marion, Monroe, Pearl River, Pike, Walthall, Washington, Wilkinson, Winston.

Names, range and relatives

Native status by region (USDA PLANTS): Lower 48 states: Native; Puerto Rico: Native; U.S. Virgin Islands: Native.

Other scientific names (synonyms in USDA PLANTS): Ipomoea tamnifolia, Thyella tamnifolia.

County records: USDA PLANTS lists it in 212 counties across 14 states; the most are in Louisiana (55), Alabama (31), Texas (27).

Other Jacquemontia on Bloomipedia (1): Pāʻū o Hiʻiaka.

More from the Convolvulaceae family (12 on Bloomipedia; most observed first): Field bindweed, Tievine, Wild potato vine, Texas bindweed, Carolina ponysfoot, Beach morning glory, Oceanblue morning glory, Beach morning-glory.

More Alabama flowers

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🌼 Blooms in AL: May–September
Beach morning-glory (Ipomoea imperati)

Beach morning-glory

Ipomoea imperati

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American beautyberry (Callicarpa americana)

American beautyberry

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Sources