[fieldguide.mt.gov] Habitat: Soil, sometimes calcareous (FNA 2007), sometimes on soil in stone fissures (Crum & Anderson et al. 1981); montane (Lawton 1971) to alpine and in tundra (FNA 2007). (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: 05/08/2025).
