@misc{indiciae8f5cf5c2b856,
  title = {Cirsium nuttallii (Asteraceae: Cynareae) new to North Carolina and an illustrated key to southeastern congeners},
  author = {A. Krings and R. Westbrooks and J. Lloyd},
  year = {2002},
  url = {https://pubs.usgs.gov/publication/70024083},
  note = {Source identifier: 70024083}
}