Birdsfoot Trefoil [Lotus corniculatus] is a member of the Pea or Bean (Fabaceae) family and these photos were taken on Campbell Road, Trout Lake on 29 June 2013. Newcomb’s Wildlower Guide, pages 66-67, says it blooms in summer and that it’s “a low, cloverlike plant of fields and roadsides.”
USDA Plants Listing: https://plants.usda.gov/home/plantProfile?symbol=LOCO6