The Hydrophyllum species in Indiana can be a challenge to identify. It takes a combination of things on the plants to tell them apart. Once you have it figured out however, you can usually tell them apart just by looking at them.
Notice in the flower above that the stamens and styles stick out past the petals of the flower. Also notice that the petals don’t spread out.
Notice below that the stem is only slightly hairy or not hairy at all. The leaves are deeply lobed and are longer than wide. The lobe indentations are pointed.
This plant is also more commonly known as Virginia Waterleaf.