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
Synonymy: = Calystegia spithamaea (L.) Pursh ssp. stans (Michx.) Brummitt – K4, Va; < Calystegia spithamaea (L.) Pursh – C, Il, Pa, RAB, W; > Calystegia spithamaea (L.) Pursh ssp. purshiana (Wherry) Brummitt – FNA, K1; > Calystegia spithamaea (L.) Pursh ssp. stans (Michx.) Brummitt – K1; > Calystegia spithamaea (L.) Pursh var. pubescens; > Convolvulus purshianus Wherry – G; < Convolvulus spithamaeus L. – Wilson (1960b); > Convolvulus spithamaeus L. – G; > Convolvulus spithamaeus L. var. pubescens (Gray) Fernald – F
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