ALISMATACEAE

Echinodorus cordifolius (Linnaeus) Grisebach. Creeping Burhead. Phen: (May-) Jun-Nov. Hab: Swamps, ditches, wet thickets, especially on base-rich substrates, such as over calcareous or mafic rocks. Dist: MD south to c. peninsular FL, west to TX, south into tropical America (Mexico, South America, West Indies), and north in the interior (primarily in the Mississippi Embayment) to s. IL.

Origin/Endemic status: Native

Syn: = F, G, GrPl, GW1, Il, K1, K3, K4, Mo1, RAB, Tx, Va, WH3, Lehtonen (2008); = Aquarius cordifolius – Christenhusz, Fay, & Byng (2018); = Echinodorus radicans – S; > Echinodorus cordifolius ssp. cordifolius – Ar, FNA22; > Echinodorus cordifolius ssp. fluitans – NcTx; > Echinodorus cordifolius var. cordifolius – C, ETx1

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