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Distribution by County   283    
Amaranthus retroflexus  L.
Green amaranth,   Red root pigweed,   Red rooted amaranth,   Redroot amaranth,   Rough pigweed
Amaranthus retroflexus is an annual herb that is not native to California.
Record Count by County

Alameda: 7 Los Angeles: 42 Riverside: 23 Siskiyou: 1
Alpine: 2 Madera: 2 Sacramento: 7 Solano: 3
Amador: 2 Marin: 2 San Benito: 3 Sonoma: 2
Butte: 19 Mariposa: 9 San Bernardino: 17 Stanislaus: 5
Contra Costa: 8 Mendocino: 7 San Diego: 18 Sutter: 3
Fresno: 5 Merced: 4 San Francisco: 1 Tehama: 1
Glenn: 3 Modoc: 1 San Joaquin: 2 Tulare: 3
Humboldt: 1 Mono: 1 San Luis Obispo: 18 Ventura: 31
Imperial: 2 Monterey: 1 San Mateo: 3 Yolo: 10
Inyo: 2 Napa: 8 Santa Barbara: 11 Yuba: 2
Kern: 11 Nevada: 1 Santa Clara: 2
Kings: 1 Orange: 18 Santa Cruz: 3
Lake: 4 Plumas: 3 Sierra: 2

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).