M.J. Oldham 37879b; specimen record; replicates at ISC, NHIC# 11977; identified as B. tunux by D.R. Farrar Nov. 2019 from specimen scan ("the smaller stocky ones with rounded pinnae") (mixed collection with B. lunaria, 37879a, https://inaturalist.ca/observations/101043359); open, flat low, vegetated beach ridge near Hudson Bay coast; local; new to Ontario
Found on edge of meadow marsh. Scales 1.2mm long, achenes 0.6-0.7mm long