Calflora
Taxon  Report   251    
Alnus incana  (L.) Moench  ssp. tenuifolia  (Nutt.) Breitung
Creek alder,   Mountain alder
Alnus incana ssp. tenuifolia, a dicot, is a tree or shrub that is native to California, and also found elsewhere in North America and beyond.
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

Bloom Period
Family: Betulaceae  
Genus: Alnus
Parent: Alnus incana

Toxicity: DERMATITIS Wetlands: Occurs usually in wetlands, occasionally in non wetlands

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

Name Status:
Accepted by JEF + PLANTS
Alternate Names:
PLANTSAlnus Xpurpusii
PLANTSAlnus incana var. occidentalis
PLANTSAlnus incana var. virescens
JEF + PLANTSAlnus tenuifolia
More information about  Alnus incana ssp. tenuifolia

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2022. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 05/16/2022).