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Erythranthe howaldiae  G.L. Nesom
© 2021 Steve Matson
© 2021 Steve Matson
© 2021 Steve Matson
© 2021 Steve Matson
© 2021 Steve Matson
© 2021 Steve Matson
© 2021 Steve Matson
© 2022 Mike Russler
© 2022 Mike Russler
© 2023 Mike Russler
© 2023 Mike Russler
© 2022 Mike Russler
© 2022 Mike Russler
© 2022 Mike Russler
© 2021 Steve Matson
© 2021 Steve Matson
© 2021 Steve Matson
© 2021 Steve Matson
© 2021 Steve Matson
© 2021 Steve Matson
© 2021 Steve Matson
© 2023 Mike Russler
Erythranthe howaldiae is an annual herb that is native to California.
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

Name Status:
Accepted by + POWO

Information about  Erythranthe howaldiae from other sources
Nursery availability from CNPLX
Commercial availability unknown.
Photos on Calflora

Photos on CalPhotos

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Photos on iNaturalist

ID Tips on PlantID.net

[phytoneuron.net] 2020 New Species, Habitat: Erythranthe howaldiae (sect. Simiolus) was recognized as a new species in 2020 from a 2019 collection on the east slope of the Sierra Nevada in Mono Co., California. Field studies in 2020 and 2021 found five additional populations, all within less than 2 kilometers from the type locality. The six known populations are small and occur on seepy granite slopes and most plants grow within beds of the moss Imbribryum alpinum. (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: 05/08/2025).