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Taxon  Report  
Lolium rigidum  Gaudin
Rigid italian rye grass,   Wimmera ryegrass
Lolium rigidum is an annual grasslike herb that is not native to California.
Siskiyou Del Norte Modoc Humboldt Shasta Lassen Trinity Plumas Tehama Butte Mendocino Glenn Sierra Yuba Lake Nevada Colusa Placer Sutter El Dorado Yolo Alpine Napa Sonoma Sacramento Mono Amador Solano Calaveras Tuolumne San Joaquin Marin Contra Costa Alameda Santa Cruz Mariposa Madera San Francisco San Mateo Merced Fresno Stanislaus Santa Clara Inyo San Benito Tulare Kings Monterey San Bernardino San Luis Obispo Kern Santa Barbara Ventura Los Angeles Riverside Orange San Diego Imperial
DJJJASONAFMM

Bloom Period
Genus: Lolium
Family: Poaceae  
Category: angiosperm  
PLANTS group:Monocot
Jepson eFlora section: monocot

Name Status:
Accepted by PLANTS + POWO
Alternate Names:
PLANTSLolium loliaceum
PLANTSLolium perenne ssp. rigidum
PLANTSLolium rigidum ssp. lepturoides
PLANTSLolium strictum
PLANTSLolium subulatum
Information about  Lolium rigidum from other sources
USDA PLANTS Profile (LORI)

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Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals. [web application]. 2025. The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 05/12/2025).