Watson's Penstemon (Penstemon watsonii) is probably the most abundant penstemon in this area. There are several other common blue penstemons: Thickleaf beardtongue (Penstemon pachyphyllus), which has thicker leaves and stalks; and Penstemon leiomerus and Penstemon humilis, both which grow above 9,000 feet (and will be featured in the next few weeks).
Watson's penstemon has hairy stems but smooth corollas (flower tubes).
Penstemons are such interesting looking plants. This genus even has its own fan club: the American Penstemon Society.
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