Convolvulus spithamaeus Linnaeus. Low Bindweed. Phen: (May-) Jun-Jul (-Aug). Hab: Dry limestone areas. Dist: ME west to MN, south to VA, TN, and MO.
Origin/Endemic status: Native
Syn: = Calystegia spithamaea ssp. spithamaea – K1, K3, K4, NE, NY, Va, Spaulding (2013c); = Convolvulus spithamaeus var. spithamaeus – F; < Calystegia spithamaea – C, GrPl, Mi, Pa, RAB, Tn, W; < Convolvulus spithamaeus – G, S, Wilson (1960b)
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© Jim Brighton, some rights reserved (CC BY-NC), uploaded by Jim Brighton 
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© Jim Brighton, some rights reserved (CC BY-NC), uploaded by Jim Brighton