Calflora
Taxon  Report   2317    
Conium maculatum  L.
Poison hemlock
Conium maculatum
© 2008 Keir Morse
Photos from
CalPhotos / Calflora
Conium maculatum
© 2019 Angelique Herman
Conium maculatum
© 2018 Nicole Leatherman
Conium maculatum, a dicot, is a perennial herb that is not native to California; it was introduced from elsewhere and naturalized in the wild. Cal-IPC rating: Moderate

Interactive Distribution Map


Observation Hotline
(observation details)



point, line, or polygon

one or more occurrences
within a 7.5-minute quadrangle

Plant Characteristics
and Associations



Bloom Period
Conium maculatum
© 2018 Jay Chamberlain
Family: APIACEAE  
Genus: Conium
Communities: weed, characteristic of disturbed places, wetland-riparian

Toxicity: MAJOR

Wetlands:
Arid West: Occurs usually in wetlands, occasionally in non wetlands
Mountains, Valleys and Coast: Equally likely to occur in wetlands and non wetlands

Habitat: disturbed, disturbed

Name Status:
Accepted by JEF + PLANTS

 
More information about  Conium maculatum
Photos on PlantID.net   /   Google Images
Jepson eFlora

Records from the Consortium of California Herbaria

ITIS Original Publication citation

USDA PLANTS Profile (COMA2)

Search the International Plants Names Index

Search efloras.org (Flora of North America)

website references from Google


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: Jan 16, 2019).