Smooth tick-trefoil
(Desmodium laevigatum)

  Members of this genus can be tricky to separate.This species is characterized by 
  rounded, not pointed, leaflets, which have a smooth slippery feel to them.   
  Uncommon in our area. Tick-trefoils, or sticktights, are legumes, and have pink or 
  white pea-type flowers. MC (Fabaceae)