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  • coastal plain
  • Cirsium lecontei occurs on the sandy pinelands of southern coastal plain in damp soil(where co-occurring species include Myrica, Cyrilla, and Ilex), specifically in the states of Alabama, Florida, Georgia, Louisiana, Mississippi, North Carolina and South Carolina. (wikipedia.org)
  • native
  • Only three genera in Cardueae are represented by native species in the New World, and of these Cirsium is by far the most widely distributed and diverse. (efloras.org)
  • Native species of Cirsium range from sea level to alpine and from boreal regions of Canada to the tropics of Central America. (efloras.org)
  • I have seen no documentation of hybridization between native American Cirsium species and introduced Eurasian taxa. (efloras.org)
  • North American
  • Although there has been a remarkable evolutionary and morphologic diversification in North American Cirsium , it has not been accompanied by very much divergence in the base sequences of genes commonly used to elucidate phylogenetic relationships. (efloras.org)
  • This suggests either that the diversification has been very rapid or that genetic markers in North American Cirsium mutate more slowly than in most other lineages. (efloras.org)
  • Chromosomal diversification has accompanied the morphologic radiation of North American Cirsium . (efloras.org)
  • photos
  • 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)
  • Field
  • In other cases hybridization has been invoked without much evidence as an explanation for Cirsium variants encountered in herbaria or in the field. (efloras.org)