Aesculus pavia Linnaeus var. pavia . Red Buckeye. Phen: Apr-early May; Jul-Aug. Hab: Coastal Plain marl forests (wet, calcareous flats), hardwood bluffs, rich floodplains of brownwater and blackwater rivers, basic-mesic forests, shell hammocks and shell middens, calcium-rich sandy soils in maritime forests. Dist: Var. pavia ranges from se. NC south to c. peninsular FL and west to e. TX, extending north in the Mississippi Embayment to se. MO and s. IL, and in scattered occurrences off the Coastal Plain, as in sc. TN; also it is sometimes cultivated inland and persistent or slightly naturalizing. Fernald (1950) reports A. pavia from VA and WV, but there is likely taxonomic or nomenclatural confusion.

Origin/Endemic status: Native

Taxonomy Comments: Var. flavescens (Sargent) Correll occurs in the Edwards Plateau of c. TX.

Synonymy: = K1, K3, K4, NcTx, Tx, Hardin (1957a), Hardin (1957b); = n/a – Pa; > Aesculus austrina Small – S13; > Aesculus discolor Pursh – F; < Aesculus pavia L. – C, Fl4, G, Il, RAB, S, Tn, W, WH3, Du, Harris, & Xiang (2020); > Aesculus pavia L. – F; >< Aesculus pavia L. – S13

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: FACU (taxonomic split from wetland indicator species)
• Eastern Mountains and Piedmont: FAC (name change)
• Great Plains: FAC (taxonomic split from wetland indicator species)
• Midwest: FAC (taxonomic split from wetland indicator species)

Heliophily: 4