Penstemon barbatus (*)
Penstemon barbatus, known by the common names Golden-beard penstemon, Beardlip penstemon, and Scarlet bugler, is a flowering plant native to the western United States. In Spanish-speaking New Mexico and southern Colorado, it is called varita de San Jose -- "St. Joseph's staff." 
The plant has spikes of clustered, tubular, scarlet blossoms with yellow hairs on their lower lip; the flowers are very attractive to hummingbirds. It is commonly grown in Xeriscape and conventional gardens, and several cultivars of different colors have been developed.
The late-summer flowering of Penstemon barbatus coincides with the southern migration of the Rufous hummingbird, and the hummingbirds use the Scarlet buglers as "filling stations" for their long trip south. 
1. ^ a b Dodson & Dunmire, 2007, Mountain Wildfowers of the Southern Rockies, UNM Press, ISBN 9780826342447
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