[Wikipedia] Monotypic Genus, Etymology: Menyanthes is a monotypic genus of flowering plants in the family Menyanthaceae containing the single species Menyanthes trifoliata.The name Menyanthes comes from Greek menyein 'disclosing' and anthos 'flower' in reference to the sequential opening of flowers on the inflorescence. (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: 03/28/2025).