Calflora
Taxon  Report   9509    
Laennecia coulteri  (A. Gray) G. L. Nesom
Coulter's horseweed
Laennecia coulteri, a dicot, is an annual herb that is native to California, is also found outside of California, but is confined to western North America.
also called Conyza coulteri

Bloom Period
Family: ASTERACEAE  
Genus: Laennecia
Wetlands: Equally likely to occur in wetlands and non wetlands

Communities: Valley Grassland, Foothill Woodland, Coastal Sage Scrub, Creosote Bush Scrub, wetland-riparian

Name Status:
Accepted by JEF + PLANTS

Alternate Names:
JEF + PLANTS: Conyza coulteri
PLANTS: Conyza coulteri var. virgata
PLANTS: Eschenbachia coulteri
More information about  Laennecia coulteri
Nursery availability from CNPLX
Commercial availability unknown.
Jepson eFlora

USDA PLANTS Profile (LACO13)

Search efloras.org (Flora of North America)

Landscape information from Calscape

Photos on PlantID.net   /   Google Images

Consortium of California Herbaria


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]. 2019. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: Aug 17, 2019).