Genus and species: Silphium perfoliatum
Common Name: Cup Plant or Rosinweed
Family: Asteraceae
Native to North America, this summer perennial is ginormous! It towers over the tallest of humans and flops over with time. It has huge square stems and is great for kids in the garden :)
Photos taken August 24, 2011 at Virginia Tech in the Hahn Horticulture Gardens
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