Keck, D.D. 1940. Studies in Penstemon. VII. The subsections Gairdneriani, Deusti, and Arenarii of the Graciles, and miscellaneous new species. The American Midland Naturalist. 23(3): 594-616.

Keck, D.D. 1940. Studies in Penstemon. VII. The subsections Gairdneriani, Deusti, and Arenarii of the Graciles, and miscellaneous new species. The American Midland Naturalist. 23(3): 594-616.

Find a Resource

Stay Connected

Subscribe to our newsletter
  • This field is for validation purposes and should be left unchanged.