by Robert Nold (Author)
With some 270 species, Penstemon is the largest genus endemic to North America, with examples to be found in every state in the continental U.S.
This book is only available through print on demand. All interior art is black and white.
Number of Pages: 308
Dimensions: 0.65 x 9 x 6 IN
Publication Date: July 16, 2010