Description: English: Silphium perfoliatum as biogasplant, may 2012 Deutsch: Silphium perfoliatum als Biogaspflanze in Gangelt-Stahe im Mai 2012;. Date: 2 May 2012. Source: Own work. Author: Blonder1984.
Leaf arrangement of Cupplant displayed. The leaves positioned opposite of each other on the square stems are in fact connected and collect water from rain or dew. This attracts a variety of insects like butterflies, and birds such as Ruby-throated Hummingbirds. Currently considered a Threatened species in Michigan.
