Calflora, a 501c3 non-profit
Distribution by County   426    
Apocynum cannabinum  L.
Indian hemp,   Indianhemp dogbane,   Hemp Dogbane
Apocynum cannabinum is a perennial herb that is native to California, and also found elsewhere in North America and beyond.
Record Count by County

Alameda: 6 Lassen: 10 Plumas: 19 Siskiyou: 3
Alpine: 4 Los Angeles: 59 Riverside: 51 Solano: 19
Amador: 3 Madera: 3 Sacramento: 29 Sonoma: 7
Butte: 27 Marin: 6 San Benito: 5 Sutter: 1
Colusa: 16 Mariposa: 18 San Bernardino: 65 Tehama: 16
Contra Costa: 14 Mendocino: 11 San Diego: 41 Trinity: 8
El Dorado: 14 Merced: 3 San Joaquin: 9 Tulare: 7
Fresno: 9 Modoc: 2 San Luis Obispo: 27 Tuolumne: 11
Glenn: 2 Mono: 28 San Mateo: 6 Ventura: 45
Humboldt: 5 Monterey: 19 Santa Barbara: 18 Yolo: 7
Imperial: 3 Napa: 13 Santa Clara: 11 Yuba: 1
Inyo: 40 Nevada: 5 Santa Cruz: 3
Kern: 25 Orange: 25 Shasta: 11
Lake: 5 Placer: 5 Sierra: 1

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: 12/03/2024).