Carya illinoinensis (Wangenheim) K. Koch. Phen: Apr-May; Oct. Hab: Bottomland forests, hardwood flatwoods, swamps, margins of fields, pastures, often along larger rivers; eastwards (out of native range) introduced and persistent around dwellings and in pecan orchards, escaped to suburban woodlands, rural forest edges and floodplains, also commonly cultivated. Dist: Sw. OH, IN, IL, e. IA south to AL, MS, LA, TX, and widespread in Mexico; now also widely spread eastwards as a result of cultivation.
Origin/Endemic status: Native
Synonymy: = C, Fl2, FNA3, Il, K1, K3, K4, Mex, NcTx, Tn, Tx, Va, WH3; = Carya illinoensis – F, G, GrPl, GW2, RAB, orthographic variant; > Hicoria pecan (Marshall) Britton – S; > Hicoria texana Leconte – S