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Hypericum chapmanii W.P. Adams. Apalachicola St. John's-wort, Tree St. John's-wort. Phen: Jun-Aug. Hab: Margins of pond-cypress ponds, pond-cypress stringers, often growing with Cyrilla parvifolia and Nyssa ursina. Dist: Endemic to Panhandle FL (11 counties).

ID notes: When mature, this species is unmistakable in its dwarf tree form, to 4 m tall and with trunks to 30 cm in diameter at base, the 'bark' of many, paper-like layers and therefore thick (to 4 cm) and spongy.

Origin/Endemic status: Endemic

Synonymy: = Fl2, FNA6, GW2, K1, K3, K4, WH3, Adams (1962), Adams (1973), Godfrey (1988), Robson (1996), Sorrie (2012); = Hypericum arborescens Chapm.; < Hypericum fasciculatum Lam. – S

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: OBL

Heliophily ?: 8

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