Penstemon whippleanus

Penstemon whippleanus; Wyoming

 

One of the lovely penstemons spotted during the American Penstemon Society meeting in Wyoming. This one was in the alpine zone of the Snowy Range, not far from Medicine Bow.

 

Penstemon whippleanus is one of nearly 300 species of Penstemon, and comes in a variety of hues, ranging from white to deep magenta purple. It's in subgenus Penstemon, section Penstemon. I've worked on Penstemon for more than 20 years of my career and there is still so much to learn about this interesting genus.

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Taken on June 23, 2012