Jacquemontia tamnifolia

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Jacquemontia tamnifolia
Jacquemontia tamnifolia Gil.jpg
Photo was taken by Gil Nelson
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida – Dicotyledons
Order: Solanales
Family: Convolvulaceae
Genus: Jacquemontia
Species: J. tamnifolia
Binomial name
Jacquemontia tamnifolia
(L.) Griseb.
JACQ TAMN dist.jpg
Natural range of Jacquemontia tamnifolia from USDA NRCS Plants Database.

Common name: hairy clustervine, jacquemontia, common jacquemontia[1]

Taxonomic notes

Synonyms: Thyella tamnifolia (Linnaeus) Rafinesque[1] >

Varieties: none[1]


This species has a climbing and twining behavior.[2]

"Herbaceous, annual, twining vine. Leaves ovate to elliptic-ovate, 5-12 cm long, acuminate, cordate, or the base rarely rounded. Peduncles equaling or longer than the subtending leaf; inflorescence capitate, 2-3 cm broad, subtended by lanceolate or elliptic, foliaceous bracts; sepals lanceolate to subulate, densely fulvous-hirsute; corolla blue, funnelform, 1-2 cm broad; stigma lobes 2, ovoid or oblong, styles fused, ovary 2-locular. Capsule subglobose, 4-6 mm broad; seeds brownish black, glabrous, ca. 2 mm long."[3]


The original range of this plant is difficult to determine. In the United States, its range extends from southeast Virginia to Florida, and west to Texas and Arizona. It is also common in the West Indies, Central America, and South America.[1]



This species has been found in floodplains and savannahs as well as disturbed areas such as old fields, corn fields, powerline corridors, along roadsides, and in grazed fallow fields.[2]


J. tamnifolia flowers August to Spetember.[4]

Fire ecology

Populations of Jacquemontia tamnifolia have been known to persist through repeated annual burning.[5]

Conservation, cultivation, and restoration

Cultural use

Photo Gallery

References and notes

  1. 1.0 1.1 1.2 1.3 Weakley, A.S. 2020. Flora of the Southeastern United States. Edition of 20 October 2020. University of North Carolina at Chapel Hill, Chapel Hill, North Carolina.
  2. 2.0 2.1 Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: June 2014. Collectors: Andre F. Clewell, J. D. Dwyer, W. E. Harmon, Lisa Keppner, R. Komarek, Robert L. Lazor, and R. A. Norris. States and Counties: Florida: Leon and Washington. Georgia: Colquitt, Decatur, Grady, and Thomas. Countries: Honduras.
  3. Radford, Albert E., Harry E. Ahles, and C. Ritchie Bell. Manual of the Vascular Flora of the Carolinas. 1964, 1968. The University of North Carolina Press. 863. Print.
  4. Nelson, G. PanFlora: Plant data for the eastern United States with emphasis on the Southeastern Coastal Plains, Florida, and the Florida Panhandle. www.gilnelson.com/PanFlora/ Accessed: 12 DEC 2016
  5. Glitzenstein, J. S., D. R. Streng, R. E. Masters, K. M. Robertson and S. M. Hermann 2012. Fire-frequency effects on vegetation in north Florida pinelands: Another look at the long-term Stoddard Fire Research Plots at Tall Timbers Research Station. Forest Ecology and Management 264: 197-209.