Calflora, a 501c3 non-profit
Distribution by County   4945    
Lolium multiflorum  Lam.

(not an active name)
Italian rye grass
Lolium multiflorum is an annual or biennial grasslike herb that is not native to California.
also called Festuca perennis
Cal-IPC rating: moderate
Record Count by County

Alameda: 94 Kings: 27 Placer: 51 Shasta: 44
Amador: 26 Lake: 28 Plumas: 13 Sierra: 1
Butte: 257 Lassen: 4 Riverside: 87 Siskiyou: 17
Calaveras: 63 Los Angeles: 234 Sacramento: 350 Solano: 227
Colusa: 37 Madera: 53 San Benito: 72 Sonoma: 297
Contra Costa: 72 Marin: 632 San Bernardino: 44 Stanislaus: 15
Del Norte: 14 Mariposa: 57 San Diego: 332 Sutter: 33
El Dorado: 38 Mendocino: 119 San Francisco: 167 Tehama: 167
Fresno: 94 Merced: 119 San Joaquin: 15 Trinity: 63
Glenn: 30 Modoc: 1 San Luis Obispo: 150 Tulare: 117
Humboldt: 112 Monterey: 216 San Mateo: 342 Tuolumne: 113
Imperial: 1 Napa: 42 Santa Barbara: 186 Ventura: 123
Inyo: 9 Nevada: 41 Santa Clara: 372 Yolo: 109
Kern: 25 Orange: 100 Santa Cruz: 111 Yuba: 89

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]. 2026. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 01/20/2026).