May Apple or Mandrake is a member of the Barberry Family
(Berberidaceae) and bears a large nodding white flower in the crotch between a pair of large (1 foot wide) leaves. The flower is about 2 inches across with 6-9 thick white petals and 12-18 stamens.
The leaves, roots and seeds of this plant are poisonous if ingested in large quantities, but the golden yellow fruit is edible and can be used to make jellies.
The flower blooms from April - June in Rich woods and damp shady clearings in Eastern North America.