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 Canada, The Contiguous United States, and North America. They have simple, broad leaves and yellow flowers. Flowers are visited by Hunt Bumble Bee, Common Eastern Bumblebee, Red-belted Bumble Bee, and Eastern Giant Swallowtail. Individuals can grow to 6 feet.
EOL has data for 48 attributes, including: