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Triadenum virginicum (Linnaeus) Rafinesque. Common name: Common Marsh St. John's-wort. Phenology: Jul-Sep. Habitat: Bogs, fens, tidal swamps and marshes, other peaty wetlands. Distribution: NS west to OH and s. ON, south to s. FL and MS, mostly on the Coastal Plain but scattered inland.

Origin/Endemic status: Native

Synonymy ⓘ: = Ar, C, Fl2, FNA6, G, GW2, Il, Mi, NS, Pa, S, S13, Tn, WH3; = Hypericum virginicum L. — Can, K4, NE, NY, POWO, RAB, Tat, Tx; = Hypericum virginicum L. var. virginicum — F, WV; < Triadenum virginicum (L.) Raf. — W, Adams (1973). Basionym: Hypericum virginicum L. 1759

Links to other floras: = Triadenum virginicum - FNA6

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL (name change)
  • Eastern Mountains and Piedmont: OBL (name change)
  • Great Plains: OBL (name change)
  • Midwest: OBL (name change)
  • Northcentral & Northeast: OBL (name change)

Heliophily ⓘ: 6

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image of plant© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Jacob Dakar | Original Image ⭷
image of plant© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Erik Danielson source | Original Image ⭷
image of plant© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷

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Horticultural Information

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