- US IlHpHS 1996.5-1019-001
- 1932-8-28
Photo of prairie dock (Silphium terebinthinaceum) flower, also known as prairie rosinweed.
Photo of prairie dock (Silphium terebinthinaceum) flower, also known as prairie rosinweed.
A photograph taken of a Rosin Weed (Silphium).
Photograph of what appears to be the leave of a compass plant.
Hand colored photo of Prairie Dock (Silphium terebinthinaceum), also known as prairie rosinweed.
Hand-colored photo of, Prairie Dock (Silphium terebinthinaceum) flower, also known as prairie rosinweed.
Prairie Dock (Silphium terebinthinaceum) flower, also known as prairie rosinweed.
Hand-colored photo of Prairie Dock (Silphium terebinthinaceum) flower, also known as prairie rosinweed.