Potentilla norvegica / Rose Family
This type of cinquefoil is branched and has three leaflets instead of the five that the others have (shouldn't it be called "Trefoil"!?). Norvegica means "Norwegian", so it seems this plant should be a non-native, however, it is native. I found this one blooming at the Haw Ridge Parking area in Oak Ridge in late May.
Where seen:Oak Ridge, Great Smoky Mountains NP, Warriors' Path SP, widespread