[Wikipedia] Taxonomy, Pollination: It is named in honor of explorer Meriwether Lewis. Together with other species in Erythranthe, it serves as a model system for studying pollinator-based reproductive isolation. It was formerly known as Mimulus lewisii. Erythranthe lewisii is pollinated by bees (primarily Bombus and Osmia), which feed off of its nectar and transfer its pollen. (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).