Penstemon acaule and yampaensis

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Title: Guest
Joined: 2010-05-06
Penstemon acaule and yampaensis
I took these out in the garden today. This is the first time I had these two species in flower at the same time, though they are different areas. Usually P. acaule is all done flowering by the time P. yampaensis gets started. I guess this shoots down my theory about why they don't seem to intergrade. The later is over twice the leaf size but the flowers are about the same size.