Cerastium strictum (Mouse-ear Chickweed)
Family:
Alsinaceae (Chickweed)
      
The sepals of Cerastium strictum are much shorter than the petals. Most other Cerastium sp. in eastern Colorado have sepals that are close to the same length as the petals.

Vegetation zone:  Foothills, Montane
Time of bloom:  March - June
Origin:  Native
Eastern Colorado Wildflowers