Bird’s Foot Trefoil, an introduced species, has been added to the USWildflowers database (01/01/2016.) Scientific name is Lotus corniculatus. Photo below was taken in Meldrum Bay, Manitoulin Island of Lake Huron, Ontario, Canada on Aug 10, 2015. Go to the Bird’s Foot Trefoil detail page for more information.
Bird’s Foot Trefoil – Lotus corniculatus