Nesom, G.L. 1992a. Taxonomic notes on Erigeron (Asteraceae: Astereae) of California, Nevada, and Arizona. Phytologia. 73(3): 186-202.
Nesom, G.L. 1992a. Taxonomic notes on Erigeron (Asteraceae: Astereae) of California, Nevada, and Arizona. Phytologia. 73(3): 186-202.