Introduction to Purple Sanicle: A beautiful part of the palette of California grassland spring wildflowers, these present a purple, one-inch-diameter, spherical flowerhead... A photo essay from PlantID.net. (link added by Bruce Homer-Smith)
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: 03/29/2025).