Calflora Taxon Report
Geranium oreganum  Howell
Oregon geranium
photo on Calflora
2021 Steve Conger
photo on Calflora
2021 Steve Conger
photo on Calflora
2021 Steve Conger
photo on Calflora
2023 Mary Ann Machi
photo on Calflora
2023 Mary Ann Machi
photo on Calflora
2023 Mary Ann Machi
photo on CalPhotos
1995 Saint Mary's College of California
photo on Calflora
2023 Mary Ann Machi
photo on Calflora
2023 Mary Ann Machi
photo on Calflora
2025 CHSC - Ahart Herbarium, CSU Chico - Vascular Plants
Geranium oreganum is a perennial herb that is native to California, and also found elsewhere in western North America.
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
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Bloom Period
Genus: Geranium
Family: Geraniaceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot
Communities: Yellow Pine Forest
Name Status:
Accepted by JEF + PLANTS + POWO
Alternate Names:
JEFGeranium viscosissimum var. incisum
External links:

[Wikipedia] Range, Habitat, Description: Geranium oreganum is a species of geranium known by the common name Oregon cranesbill, or Oregon geranium. It is native to western North America from California to Alberta, where it grows in mountain forests and meadows. This is a perennial herb growing generally erect to heights of 40 to 80 centimeters. The slender stems have a foliage of large palmate leaves up to 15 centimeters wide and divided into several segments, each of which is subdivided into rounded or pointed lobes. The flower has pointed sepals beneath rounded lavender to purple petals. The fruit has a small body with a pointed style column up to five centimeters long. (link added by Mary Ann Machi)

Suggested Citation
“Calflora - Taxon Report.” The Calflora Database, a non-profit organization. .

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