Thistle- Pasture (Cirsium discolor)
The downy white underside contrasts with the green topside. Non-native thistles do not have this white underside. Additionally, native thistles are noticeably less prickly than weedy, non-native thistles.
Sun Exposure - Full, Partial
Soil Moisture - Medium, Medium-Dry
Height - 6 feet
Bloom Time - August, September, October
Bloom Color - Purple
Photo courtesy of Prairie Moon.