Intertaxon relationships
Adenostoma Hook. & Arn. - chamise
Arctostaphylos Adans. - manzanita
Artemisia dracunculus L. - Tarragon 
Artemisia nova A. Nelson - Black Sagebrush
Corethrogyne filaginifolia (Hook. & Arn.) Nutt. - Common Sandaster
Eriodictyon Benth. - yerba santa
Hazardia Greene - bristleweed
Iva axillaris Pursh - Povertyweed