• wrightii
  • Based on a study done by the WildEarth Guardians Organization, Cirsium wrightii has a high chance of grappling with the risk of extinction due to some of the aforementioned threats. (wikipedia.org)
  • SEINet
  • SEINet, Southwestern Biodiversity, Arizona Chapter, Cirsium mexicanum DC includes photos and Mexican distribution map Pérez J., L. A., M. Sousa Sánchez, A. M. Hanan-Alipi, F. Chiang Cabrera & P. Tenorio L. 2005. (wikipedia.org)