This is a challenging genus. Identified by leaf shape, precise flower shape, smooth stem, and the length of the leaf stalk. Sessile-leafed is very similar, but is ruled out by the length of the leaf stalk (greater than 1/2").
There are 426 records in the project database.
GA | AL | WA | FR | CL | MO | HO | BA | BC | HA | CE | PG | AA | CV | CH | SM | KE | QA | CN | TA | DO | WI | SO | WO |