Lesser Trefoil
Last photo is a comparison between Lesser Trefoil and Black Medick
Black Medick
Basal rosette of hairy elliptical lvs. Basal leaves short stalked.
Stem hairy at bottom, hairless at top.
Fruits long narrow and cylindrical.
Style is short, single, disc shaped.
Leaves clasping stem with sagittate (arrow) base.
Heart shaped triangular fruits