Dig deeper at SERNEC, a consortium of southeastern herbaria.
Check out EDDMapS.org to see where this has been reported.
Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Solanales
Coastal Morning Glory, Tie-vine, Cotton Morning Glory
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Richard and Teresa Ware rtw_i_cordatotrilo_4
Flowers typically have a somewhat darkened center, per Atlantic Coastal Plain Wildflowers.
Keith Bradley kab_i_cordatotriloba_3995
August Miami-Dade County FL
"Corda" refers to heartshaped lf bases; "triloba" to mostly 3-lobed blades, per Atlantic Coastal Plain Wildflowers.