Convolvulus stans Michaux. Shale Bindweed. Hab: Shale barrens and woodlands, less typically on limestone. Dist: C. PA south through w. VA and e. WV to NC.
Origin/Endemic status: Endemic
Syn: = Calystegia spithamaea ssp. stans – K4, Va; < Calystegia spithamaea – C, Il, Pa, RAB, W; > Calystegia spithamaea ssp. purshiana – K1; > Calystegia spithamaea ssp. stans – K1; > Convolvulus purshianus – G; < Convolvulus spithamaeus – Wilson (1960b); > Convolvulus spithamaeus – G; > Convolvulus spithamaeus var. pubescens – F
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