Yet another Penstemon

I like Penstemon and Colorado is home to almost 60 species, many are specific to the areas they grow in, at least 15-20 of the 60 are species of concern as they are rare or restricted to very small areas. One species in the sate grows in an area of about 2 square miles and no other location on earth outside of cultivation.

The is P. watsonii, it is neither rare or endemic to Colorado, it is found through several Western States.