Silphium perfoliatum (Cup Plant) is a species of perennial herb in the family Asteraceae. They have a self-supporting growth form. They are native to The Contiguous United States, Canada, and North America. They have simple, broad leaves and yellow flowers. Flowers are visited by Eastern Giant Swallowtail, Bumble Bees, Red tailed bumblebee, and Tricolored Bumble Bee. Individuals can grow to 6 feet.
EOL has data for 47 attributes, including: