[Besides, there is another thistle very like the "carduus avernis,”1 and inexperience may lead to mistakes. I do not know the name of this thistle, although the late lamented Mr. W. H. Bacchus showed me in 1887 a letter he had from the learned Baron Von Mueller, describing the proportions, but owing to the peculiar caligraphy neither of us were able to decipher the name—but read "It is a native of western South America, and will not do great harm."]
Carduus avernis
Please cite as “FVM-87-00-00f,” in Correspondence of Ferdinand von Mueller, edited by R.W. Home, Thomas A. Darragh, A.M. Lucas, Sara Maroske, D.M. Sinkora†, J.H. Voigt† and Monika Wells accessed on