Trout Lily, Adder's Tongue or Dogtooth Violet
Trout Lily, Adder's Tongue or Dogtooth Violet
Erythronium americanum
Lily Family - Liliaceae
Flowers 0.75 to 1.5 inches in length with 3 petals and 3 sepals both of which curve backwards. Initially the anthers of the 6 stamens are yellow and then turn reddish-brown.

(Photographed late April).
A single nodding yellow flower (brownish-purple on the underside) rising above two elongated and rather broad basal leaves,
  Pathology Images Inc. 2000 to 2002