[Wikipedia] Toxicity: Toxicoscordion paniculatum is infamous for its poisonous qualities in the western United States.[17] All parts of the plant are poisonous, people have even been poisoned by the flowers. However, the most poisonous part is the bulb. Humans that have mistaken the bulbs for those of wild onions or camas and eaten them have been fatally poisoned.[ (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: 03/30/2025).