Hypericum prolificum Linnaeus. Shrubby St. John’s-wort. Phen: Jun-Oct. Hab: Bogs, seepages, dry rocky forests, rock outcrops, riverside prairies. Dist: NY west to s. MI and MN, south to GA, LA, and e. TX.

Origin/Endemic status: Native

Synonymy: = Ar, C, Fl2, FNA6, G, Il, K1, K3, K4, Mi, Mo2, NE, NY, Pa, RAB, S, Tn, Tx, Va, W, WH3, WV, Adams (1962), Adams (1973), Robson (1996); = Hypericum spathulatum (Spach) Steud. – F

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