Calflora, a 501c3 non-profit
Distribution by County   11634    
Elymus caput-medusae  L.
Medusa head
Elymus caput-medusae is an annual grasslike herb that is not native to California.
Cal-IPC rating: high
Record Count by County

Alameda: 336 Lake: 136 Plumas: 264 Solano: 134
Alpine: 2 Lassen: 431 Sacramento: 864 Sonoma: 748
Amador: 63 Los Angeles: 3 San Benito: 131 Stanislaus: 9
Butte: 229 Madera: 8 San Diego: 200 Sutter: 12
Calaveras: 58 Marin: 313 San Francisco: 3 Tehama: 403
Colusa: 26 Mariposa: 105 San Joaquin: 9 Trinity: 219
Contra Costa: 676 Mendocino: 137 San Luis Obispo: 18 Tulare: 3
Del Norte: 13 Merced: 21 San Mateo: 114 Tuolumne: 620
El Dorado: 240 Modoc: 344 Santa Barbara: 77 Ventura: 64
Fresno: 48 Mono: 3 Santa Clara: 762 Yolo: 49
Glenn: 18 Monterey: 47 Santa Cruz: 5 Yuba: 162
Humboldt: 38 Napa: 84 Shasta: 259
Kern: 2 Nevada: 125 Sierra: 28
Kings: 1 Placer: 83 Siskiyou: 101

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).