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Erythranthe lewisii  Pursh
Lewis' monkey flower
© 2022 Dana York
© 2018 joaquin hale
© 2008 John Doyen
© 2022 Dana York
© 2008 John Doyen
© 2022 Dana York
© 2022 Dana York
© 2024 Dana York
© 2024 Dana York
Erythranthe lewisii is a perennial herb that is native to California, and also found elsewhere in North America and beyond.
also called Mimulus lewisii
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
DJJJASONAFMM

Bloom Period
Genus: Erythranthe
Family: Phrymaceae  
(Scrophulariaceae)
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Wetlands: Occurs usually in wetlands, occasionally in non wetlands

Habitat: streambanks

Communities: Yellow Pine Forest, Red Fir Forest, Lodgepole Forest, Subalpine Forest, wetland-riparian

Name Status:
Accepted by JEF + POWO

Alternate Names:
JEFMimulus lewisii
Information about  Erythranthe lewisii from other sources
Nursery availability from CNPLX
This plant is available commercially.
Jepson eFlora

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Photos on iNaturalist

ID Tips on PlantID.net

[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)


Suggested Citation
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).