http://forevergreen-umn.info/17FG-Silphium.pdf http://forevergreen-umn.info/17FG-Silphium.pdf > Silphium integrifolium—rosinweed—is in the early stages of dome

http://forevergreen-umn.info/17FG-Silphium.pdf http://forevergreen-umn.info/17FG-Silphium.pdf > Silphium integrifolium—rosinweed—is in the early stages of domestication to become a part of diverse, sustainable, and productive cropping systems that will protect Minnesota soil and water resources by providing continual cover of the landscape. Silphium is a relative of annual sunflower and is a native forb in the tallgrass prairie region of the U.S.