Helianthus tuberosus Linnaeus. Phen: Jul-Oct. Hab: Native in rich bottomlands and along streams, disturbed areas, cultivated in gardens for the edible tubers. Dist: Native distribution is unclear, perhaps OH, MI, MN, ND, and e. MT south to w. TN, LA, and TX.
Origin/Endemic status: Native
Synonymy: = Ar, C, Fl7, FNA21, K1, K3, K4, Mi, NcTx, NE, NY, Oh3, Pa, RAB, S, SE1, Tn, Tx, Va, W, WH3; > Helianthus tuberosus L. var. subcanescens A.Gray – F, G, GrPl; > Helianthus tuberosus L. var. tuberosus – F, G, Il