World Botanical Associates Web Page
Prepared by Richard W. Spjut
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