Silphium perfoliatum 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 Leptometopa latipes, Calopteron reticulatum, Papilio cresphontes, and Phyciodes tharos. Individuals can grow to 6 feet.
EOL has data for 47 attributes, including: