Cup plant or Indian cup
Cup plant or Indian cup
Silphium perfoliatum
Composite Family - Asteraceae
  � Pathology Images Inc. 2001 to  2002
A tall (4 to 8 feet), square stemmed herb with 2 to 3 inch wide, yellow flower heads with many ray flowers. Leaves rough, opposite and toothed. A distinctive feature is the fusion of the basal part of upper leaves to form a shallow cup.
(Photographed at the Fletcher Wildlife Garden - July 24, 2002)