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Distribution by County   7647    
Solanum americanum  Mill.
American black nightshade,   Common nightshade,   Small flowered nightshade,   White nightshade
Solanum americanum is an annual or perennial herb that is native to California, and also found elsewhere in North America and beyond.
Record Count by County

Alameda: 41 Kings: 5 Plumas: 1 Shasta: 5
Alpine: 1 Lake: 3 Riverside: 38 Siskiyou: 2
Amador: 1 Los Angeles: 92 Sacramento: 24 Solano: 25
Butte: 72 Madera: 4 San Benito: 7 Sonoma: 46
Colusa: 4 Marin: 77 San Bernardino: 55 Stanislaus: 8
Contra Costa: 17 Mariposa: 9 San Diego: 164 Sutter: 3
Del Norte: 1 Mendocino: 24 San Francisco: 18 Tehama: 7
El Dorado: 7 Merced: 8 San Joaquin: 10 Tulare: 11
Fresno: 3 Monterey: 62 San Luis Obispo: 40 Tuolumne: 2
Glenn: 1 Napa: 13 San Mateo: 60 Ventura: 62
Humboldt: 18 Nevada: 3 Santa Barbara: 40 Yolo: 4
Inyo: 18 Orange: 48 Santa Clara: 31 Yuba: 3
Kern: 26 Placer: 3 Santa Cruz: 33

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]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 11/09/2025).