Symphyotrichum campestre

Symphyotrichum campestre (formerly Aster campestris) is a species of flowering plant of the family Asteraceae commonly known as western meadow aster. It is native to much of western North America where it grows in many habitats, generally at some elevation.

Description
Symphyotrichum campestre is a perennial, herbaceous plant growing to a maximum height near 40 cm from a long rhizome. The brown stems, leaves, and some parts of the flower heads are covered with tiny glands on tiny stalks called "stipitate glands". The leaves can be 1 to 8 cm long depending on their location on the plant, and linear to oval in shape. The inflorescence holds several flower heads containing many violet ray florets around a center of yellow disc florets. The fruit is a hairy cypsela.