Symphyotrichum campestre (formerly Aster campestris) is a species of aster known by the common name western meadow aster. It is native to much of western North America from British Columbia, California, and the Rocky Mountains region, to Arizona and New Mexico. , where it grows in many habitat types, generally at some elevation. It is a perennial herb growing to a maximum height near half a meter from a long rhizome. The thin brown stems are covered in rough hairs and resin glands. The leaves are a few centimeters long, linear to oval in shape, and often hairy. The glandular inflorescence holds several flower heads containing many violet ray florets around a center of long yellow disc florets. The fruit is a hairy achene. It is a perennial herb growing to a maximum height near half a meter from a long rhizome. The thin brown stems are covered in rough hairs and resin glands. The leaves are a few centimeters long, linear to oval in shape, and often hairy. The glandular inflorescence holds several flower heads containing many violet ray florets around a center of long yellow disc florets. The fruit is a hairy achene.