Mimulus guttatus (Yellow Monkeyflower)
Family:
Scrophulariaceae (Figwort)
            
Compare to Mimulus glabratus, which has smaller flowers, a sprawling growth habit and is usually found at lower elevations.

Vegetation zone:  Foothills, Montane, Subalpine
Time of bloom:  April - September
Origin:  Native
Eastern Colorado Wildflowers