Calflora Taxon Report
Erythranthe howaldiae  G.L. Nesom
photo on Calflora
2021 Steve Matson
photo on Calflora
2021 Steve Matson
photo on Calflora
2022 Mike Russler
photo on Calflora
2021 Steve Matson
photo on Calflora
2023 Mike Russler
photo on Calflora
2021 Steve Matson
photo on Calflora
2023 Mike Russler
photo on Calflora
2025 Mike Russler
photo on Calflora
2025 Mike Russler
photo on Calflora
2025 Mike Russler
photo on Calflora
2025 Mike Russler
photo on Calflora
2025 Mike Russler
photo on Calflora
2022 Mike Russler
photo on Calflora
2023 Mike Russler
photo on Calflora
2025 Mike Russler
photo on Calflora
2025 Mike Russler
photo on Calflora
2022 Mike Russler
photo on Calflora
2022 Mike Russler
photo on Calflora
2021 Steve Matson
photo on Calflora
2021 Steve Matson
photo on Calflora
2021 Steve Matson
photo on Calflora
2021 Steve Matson
photo on Calflora
2021 Steve Matson
photo on Calflora
2021 Steve Matson
photo on Calflora
2021 Steve Matson
photo on Calflora
2021 Steve Matson
photo on Calflora
2021 Steve Matson
photo on Calflora
2021 Steve Matson
photo on Calflora
2022 Mike Russler
photo on Calflora
2025 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
External links:

[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 - Taxon Report.” The Calflora Database, a non-profit organization. .

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