Polemonium vanbruntiae Britton. Bog Jacob's-ladder. Phen: May-Jul. Hab: Calcareous fens, swamps, and streambanks. Dist: ME, VT, and n. NY south to se. PA, sw. PA, and e. WV.
Origin/Endemic status: Native
Synonymy: = K1, K3, K4, NE, NY; = Polemonium van-bruntiae – C, F, G, Pa, WV, orthographic variant
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