Calflora, a 501c3 non-profit
Distribution by County   7093    
Rhus trilobata  Nutt.  var. simplicifolia  (Greene) F. A. Barkley

(not an active name)
Single leaf skunkbrush,   Skunkbush sumac
Rhus trilobata var. simplicifolia is a shrub that is native to California, and also found elsewhere in North America and beyond.
also called Rhus aromatica
Record Count by County

Butte: 31 Lassen: 1 Riverside: 125 Sonoma: 2
Colusa: 13 Los Angeles: 135 Sacramento: 1 Sutter: 1
Contra Costa: 32 Madera: 5 San Bernardino: 138 Tehama: 18
El Dorado: 4 Mariposa: 8 San Diego: 130 Trinity: 32
Fresno: 8 Mendocino: 4 San Luis Obispo: 25 Tulare: 7
Glenn: 6 Monterey: 8 San Mateo: 1 Ventura: 30
Humboldt: 1 Napa: 10 Santa Barbara: 18 Yolo: 9
Inyo: 3 Nevada: 3 Shasta: 46 Yuba: 1
Kern: 4 Orange: 34 Siskiyou: 7
Lake: 27 Placer: 2 Solano: 4

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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 11/21/2024).