Calflora Taxon Report
Conyza canadensis  (L.) Cronquist

(not an active name)
Canada horseweed,   Canadian horseweed
Conyza canadensis is an annual herb that is native to California, and also found elsewhere in North America and beyond.
also called Erigeron canadensis
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
Genus: Conyza
Family: Asteraceae  
Category: angiosperm  
PLANTS group:Dicot
Jepson eFlora section: eudicot

Habitat: disturbed

Communities: wetland-riparian, weed, characteristic of disturbed places

Name Status:
Accepted by PLANTS
Alternate Names:
JEFErigeron canadensis
Information about Conyza canadensis from other sources
Nursery availability from CNPLX
Commercial availability unknown.

USDA PLANTS Profile (COCA5)

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Photos on iNaturalist

ID Tips on PlantID.net

Suggested Citation
“Calflora - Taxon Report.” The Calflora Database, a non-profit organization. .

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