Bloomipedia
Tievine (Ipomoea cordatotriloba)
Photo: Amber M. King via iNaturalist · CC BY 4.0 · resized

Flower profile

Tievine

Ipomoea cordatotriloba

Tievine (Ipomoea cordatotriloba) is a vine in the Convolvulaceae family, native in the lower 48 states, blooming mostly September–October across the U.S.

Native in the lower 48

Tievine is a wildflower that USDA PLANTS lists as native in the lower 48 states. It's on our flower lists for 2 states, and across the U.S. it's most often seen in bloom in September–October.

9states where USDA records it
2Bloomipedia state lists include it
22,705U.S. sightings*

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

On our lists for: Louisiana, Texas

Quick look

Ipomoea cordatotriloba is a species of morning glory native to the southeastern United States and Mexico. Its common names include tievine and cotton morning glory.

  • It belongs to the Convolvulaceae family. iNaturalist
  • USDA PLANTS describes it as an herb (forb) / a vine with a perennial life cycle. USDA PLANTS
  • USDA PLANTS lists it as native in the lower 48 states and records it in 9 states. USDA PLANTS
  • NatureServe lists it as native to Texas and Louisiana. NatureServe
  • In Texas, most iNaturalist sightings of it in flower come in April–October. iNaturalist
  • iNaturalist has 19,623 research-grade sightings of it in Texas, ranking #17 among the 169 flowers on our Texas list. iNaturalist
  • iNaturalist has 456 research-grade sightings of it in Louisiana, ranking #81 among the 154 flowers on our Louisiana list. iNaturalist

When does it bloom?

Flowering records by month across the U.S. (iNaturalist research-grade observations marked “Flowering”) (2,090 records)
Bloom time in the 2 states whose Bloomipedia list includes it
StateTypePeak bloomSightings*
TexasNativeApril–October19,623
LouisianaNativefew records (49)456

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
Texas
Not listed Not on Texas endangered and threatened plants (31 Tex. Admin. Code § 69.8), as listed by Texas Parks and Wildlife. NatureServe: SNR, not yet ranked in Texas. 31 TAC 69.8
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.
Rare elsewhere
Other states where NatureServe ranks it rare or missing: NC (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 page for this plant), USDA PLANTS) say whether it's edible or poisonous for people.

For petsToxic to dogs, cats and horses

ASPCA's entry “Morning Glory” (Ipomoea spp), which covers the whole genus, lists it as toxic to dogs, cats and horses. Signs include: Vomiting, large amounts of seeds may cause… ASPCA

🌿 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 tievine in 9 states.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Alabama, Arkansas, Florida, Georgia, Louisiana, Mississippi, North Carolina, South Carolina, Texas.

Texas counties with USDA records: Anderson, Angelina, Aransas, Bastrop, Bell, Bexar, Blanco, Bosque, Brazoria, Brazos, Brewster, Brown, Burleson, Burnet, Calhoun, Cameron, Cass, Coleman, Colorado, Coryell, Dallas, DeWitt, Dimmit, Ellis, Erath, Falls, Freestone, Frio, Galveston, Gillespie, Gonzales, Grayson, Grimes, Guadalupe, Hardin, Harris, Hays, Hidalgo, Hill, Hood, Houston, Jackson, Jefferson, Johnson, Karnes, Kendall, Kenedy, Kerr, Kimble, Kinney, Kleberg, Lampasas, Lavaca, Live Oak, Llano, Matagorda, McLennan, Medina, Menard, Milam, Mills, Montgomery, Nacogdoches, Nueces, Palo Pinto, Parker, Polk, Presidio, Refugio, Robertson, San Patricio, San Saba, Schleicher, Somervell, Tarrant, Travis, Trinity, Tyler, Val Verde, Victoria, Walker, Waller, Washington, Webb, Willacy, Williamson, Wilson.

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

Names, range and relatives

County records: USDA PLANTS lists it in 218 counties across 9 states; the most are in Texas (87), Louisiana (56), Florida (46).

Other Ipomoea on Bloomipedia (7): Wild potato vine, Beach morning glory, Oceanblue morning glory, Beach morning-glory, Trans-Pecos morning-glory, Bush morning-glory, Obscure morning glory.

More from the Convolvulaceae family (12 on Bloomipedia; most observed first): Field bindweed, Texas bindweed, Carolina ponysfoot, Hairy cluster-vine, Pāʻū o Hiʻiaka.

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Sources