]> GH barcode-02069220 Canada Nova Scotia Butler's (Gavelton) Lake, Gavelton Bartonia paniculata subsp. iodandra (B. L. Robinson) J. M. Gillett (B. L. Robinson) J. M. Gillett 2020-06-18 11:50:57 M. L. Fernald, B. H. Long & D. H. Linder