[Wikipedia] Culinary Uses: Indigenous peoples and settlers cooked the leaves and the roots of plants belonging to the genus Hydrophyllum, which includes the ballhead waterleaf, for greens. (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: 03/29/2025).
