Ludwigia alata Elliott. Section: Isnardia. Phen: Jun-Oct. Hab: Interdune ponds, freshwater to slightly brackish (oligohaline) marshes, cypress swamps. Dist: Se. VA south to s. FL, west to se. LA; disjunct in Jamaica, where apparently introduced.
Origin/Endemic status: Endemic
Taxonomy Comments: This species is a hexaploid (n = 24). One third of the genome of L. alata is apparently derived from L. microcarpa or its ancestor (Peng 1988).
Synonymy: = C, F, Fl4, FNA10, G, K1, K3, K4, RAB, S, Va, WH3, WI, Peng (1989), Wagner, Hoch, & Raven (2007); < Ludwigia alata Elliott – GW2