Potentilla Canadensis (Cinque-Foil)

This perennial plant has a procumbent stem from two to eighteen inches in length.  The leaves are palmate, leaflets obovate, and flowers yellow, on solitary pedicels.
There are two varieties of this plant, the P. Pamilla, which is very small and delicate, flowering in April and May, and growing in dry, sandy soils, and the P. Simplex, a larger plant, growing in richer soils, and flowering from June to August.