The World Botanical Associates Web Page
Prepared by Richard W. Spjut
August 2005

Arnica nevadensis
Marble Mts., Deep Lake, CA
July 2005

Arnica chamissonis ssp. foliosa var. incana: an aquatic from California, assigned to Monroe Wall (also to Pettit, Hartwell 1976).  Hartwell (1976) reported that Wall isolated  helanalin acetate from samples of this species based on activity in PS (T/C 165).

Arnica chammissonis ssp. foliosa from Arizona, assigned to Jack Cole

Arnica longifolia