Plant Communities: Yellow Pine Forest Red Fir Forest Lodgepole Forest
Synonyms: Sorbus cascadensis Sorbus scopulina var. cascadensis Sorbus sitchensis var. densa
Counties: Butte Del Norte El Dorado Humboldt Lassen Los Angeles Mariposa Mono Modoc Nevada Placer Plumas Shasta Sierra Siskiyou Tehama Trinity Tulare Tuolumne