A tall, perennial Erigeron of woodlands, found in southeastern Arizona and southwestern New Mexico.

A pseudanthium above Herb Martyr in the Chiricahua Mountains, 3 Sep 2007.

Above Herb Martyr in the Chiricahua Mountains, 3 Sep 2007.

Plant habit in the Chiricahua Mountains, 3 Sep 2007.

A cauline leaf in the Chiricahua Mts., 3 Sep 2007.