Common Milkweed
Common Milkweed
Asclepias syriaca
Milkweed Family - Asclepiadaceae
Distinctive heads (umbels) of rose to greenish purple, somewhat drooping flowers, each on a relatively long stalk. Petals bent backwards exposing a 5-part hood or corona with a curved horn arising from each hood. 
(Photographed - late July)
Leaves 4 to 10" long, light green, opposite, broadly oblong and downy below.
  Pathology Images Inc. 2000 to 2002