M.J. Oldham collection 43092, replicates to CAN, DAO, TRT, MICH, BABY, NHIC# 03379, LKHD, MT, +1; previously collected (#43039) here; population originally discovered by Sean Blaney; disturbed trail edge; see Oldham, M.J., W.D. Van Hemessen, and S. Blaney. 2018. Round-fruited St. John’s-wort (Hypericum sphaerocarpum, Hypericaceae) in Canada. Canadian Field-Naturalist 132(4): 389–393.