Calflora
Taxon  Report   2324    
Conyza bonariensis  (L.) Cronquist  
(no longer an active name)
Asthmaweed,  Flax leaved fleabane, Horseweed, South american horseweed
Conyza bonariensis, a dicot, is an annual herb that is not native to California; it has been naturalized in the wild.
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

Bloom Period
Family: ASTERACEAE  
Genus: Conyza

Name Status:
Accepted by PLANTS

ICPN other name:
Erigeron bonariensis

Alternate Names:
PLANTS: Erigeron bonariensis
PLANTS: Erigeron crispus
PLANTS: Erigeron linifolius
. . .
NOTE: Conyza bonariensis is no longer an active name.
More information about  Conyza bonariensis

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]. 2020. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: Sep 23, 2020).