https://mywildflowers.com/detail.asp?photo=yrt143&p1=index.asp&mode=popular&c1=Home&c2=Most%20Popular
Wildflower: Whorled Rosinweed (Silphium trifoliatum), Youghiogheny River Trail
Wildflower detail: Whorled Rosinweed (Silphium trifoliatum) from Youghiogheny River Trail
youghiogheny river trailwhorled rosinweedsilphium trifoliatumwildflower