Hydrangea arborescens Linnaeus. Smooth Hydrangea, Northern Wild Hydrangea, Sevenbark. Phen: May-Jul. Hab: Forests, especially around rock outcrops and along streambanks. Dist: NJ, s. NY, OH, IN, IL, MO, and se. KS south to e. NC, c. SC, c. GA, Panhandle FL, s. AL, LA, and OK.

Origin/Endemic status: Native

Synonymy: = Ar, Fl5, FNA12, Il, K1, K3, K4, NE, NY, Pa, S, Tn, Va, W, WH3, Pilatowski (1982); = Hydrangea arborescens L. ssp. arborescens – RAB, McClintock (1957); = Hydrangea arborescens L. var. arborescens – C, G, WV; > Hydrangea arborescens L. var. arborescens – F; > Hydrangea arborescens L. var. oblonga Torr. & A.Gray – F

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