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Erythranthe rhodopetra  N.S. Fraga
Red rock canyon monkeyflower
© 2023 Bob Steele
© 2020 Matt Berger
© 2023 Bob Steele
© 2020 Matt Berger
© 2020 Matt Berger
© 2023 Bob Steele
© 2024 Bob Steele
© 2017 Adam Chasey
© 2024 Bob Steele
© 2023 Bob Steele
© 2023 Bob Steele
© 2023 Bob Steele
© 2023 Richard Spjut
© 2018 Adam Chasey
© 2020 Matt Berger
© 2020 Matt Berger
© © 2015 Cindy Hopkins
Erythranthe rhodopetra is an annual herb that is native to California.
California Rare Plant Rank: 1B.1 (rare, threatened, or endangered in CA and elsewhere).
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
Observation Search
~47 records in California
yellowone or more occurrences
within a 7.5-minute quadrangle
Genus: Erythranthe
Family: Phrymaceae  
(Scrophulariaceae)
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Name Status:
Accepted by JEF + CNPS + POWO

Information about  Erythranthe rhodopetra from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

Photos on Calflora

Photos on CalPhotos

Google Images

Photos on iNaturalist

ID Tips on PlantID.net

[Wikipedia] Etymology: The derivation of Erythranthe is from Greek erythros red, with anthos, flower. They are called monkey-flowers because some species have flowers shaped like a monkey's face. (link added by Mary Ann Machi)

[Wikipedia] Limited Range, Threats, Similar Species: Erythranthe rhodopetra, also known as the Red Rock Canyon monkeyflower, is a species of plant.[1] Erythranthe rhodopetra is a rare plant native to Kern County, California, United States.[2] According to the California Native Plant Society, "Known only from the El Paso Mtns. Many occurrences historical; need field surveys. Possibly threatened by mining, vehicles, recreational activities, foot traffic, and non-native plants. Previously identified as, and similar to, E. palmeri." (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: 04/22/2025).