Oligosporus pacificus or Artemisia campestris
(Field Sagewort)
Family: Asteraceae (Sunflower)
Field Sagewort, though a native plant, has a weedy appearance on dry meadows and hillsides. Leaves are pinnately divided and slightly gray-green. A hand lens will help you see the short, dense hairs on the leaf surface. Several woody stems grow from each plant.

Compare to Oligosporus dracunculus (Wild Tarragon), which has hairless, greener linear leaves that are not divided.

Compare to Artemisia biennis, which has much larger leaves and grows as a single stem.

Vegetation zone:  Plains, Foothills
Time of bloom:  July - October
Origin:  Native
Eastern Colorado Wildflowers