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Hypericum boreale (Britton) E.P. Bicknell. Dwarf St. John's-wort, Northern St. John's-wort. Phen: Jul-Sep. Hab: Sinkhole ponds in the Mountains, interdune ponds in the outer Coastal Plain, boggy places. Dist: NL (Newfoundland) and QC west to w. ON, south to VA, nw. NC (?), OH, IN, and n. IL.

Origin/Endemic status: Native

Taxonomy Comments: Apparent hybrids with H. canadense have been called H. ×dissimulatum E.P. Bicknell (pro sp.).

Synonymy: = C, F, FNA6, G, Il, K1, K3, K4, Mi, NE, NY, Pa, Tat, Va, WV; = Hypericum mutilum L. ssp. boreale (Britton) J.M.Gillett – Robson (2006); = n/a – RAB

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL
  • Eastern Mountains and Piedmont: OBL
  • Midwest: OBL
  • Northcentral & Northeast: OBL

Heliophily: 9

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image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷

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