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Convolvulaceae family

Operculina hamiltonii (G. Don) D.F. Austin & Staples, J. Arnold Arbor. 64(3): 487-488. 1983.
Bas.: Ipomoea hamiltonii G. Don (1838).

Indigenous vine of dry savanna.
Portalese, Choiseul. Observed in one spot.
Dominica, St  Lucia, St Vincent, Grenada, Tobago, Mesoamerica, South America.
Distinctive flower buds and winged stem.