Plant identification?

Was walking in Northern Ca. zone 7 by the creek in the park, found a low growing plant with a 2 tone leaf (plant has 3 roundish leaves) the leaves are about 3 to 4" diameter green with burgundy/brownish spots, center of the plants had a burgundy flower, when it opens it looks like a star magnolia. Does not have runners. Woody, shaded, damp area. This was a patch about 20' by 15' walked her before have never seen it. None of the plants were taller than 10". Leaves are smooth. The roots seem to be about 6" under ground, I could not dig up...