Oxybaphus linearis or Mirabilis linearis
(Narrowleaf Four-o`clock)
Oxyphabus linearis grows on dry sites on the plains and foothills, often along the sides of trails. The pink or white flowers are similar to flowers of O. nyctagineus, but usually lighter in color. The narrow leaves of O. linearis help to separate the two species. With its spindly growth habit and ability to grow on degraded sites, some people mistake O. linearis for a weed.

Vegetation zone:  Plains, Foothills
Time of bloom:  June - August
Origin:  Native
Eastern Colorado Wildflowers