Trout Lily

So many of the spring ephemerals are blooming now.  Today I found several Trout Lilies in bloom.  Most sources claim that the yellow flowering variety is more common, however, the ones at Habitat Home are white.  The flower is extremely sensitive to the sunlight and will turn on its stalk to follow the sunlight.  At night it nearly closes.  Another interesting feature is the mottled leaves which some say look like a trout, hence the name Trout Lily.  But others call this the Dog-tooth "Violet"because the petals look like dog's teeth.  I think violet is very misleading and so it is Trout Lily to me or Erythronium albidum  to really identify it.