[Wikipedia] As Ecologic Indicator: As ecologic indicator
Aspidotis densa is a regional ecologic indicator on areas where ultramafic rocks (serpentine) are patchy, such as the Klamath and Siskayou Mountains of northern California and southwest Oregon and the Wenatchee Mountains of Washington.[4] Areas of serpentine soil can typically be seen as areas with sparse plant coverage or open forest bounded by closed forest on the non-ultramafic soils, with Aspidotis densa concentrated in the serpentine areas. (link added by Mary Ann Machi)
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2025.The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 03/31/2025).
