Ambrosia artemisiifolia Calflora

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Taxon Report

Ambrosia artemisiifolia L.

Annual ragweed, Common ragweed, Low ragweed

Ambrosia artemisiifolia is an annual herb that is not native to California.


	Plant Range Observation Search ~90 records in California Plant Characteristics

Bloom Period

Photos on Calflora


Genus:	Ambrosia
Family:	Asteraceae
Category:	angiosperm
PLANTS group:	Dicot
Jepson eFlora section: eudicot

Wetlands: Occurs usually in non wetlands, occasionally in wetlands

Habitat: disturbed

Communities: weed, characteristic of disturbed places

Name Status:
Accepted by JEF + JEF + PLANTS + POWO

Information about Ambrosia artemisiifolia from other sources


Jepson eFlora USDA PLANTS Profile (AMAR2) Photos on Calflora Photos on CalPhotos Google Images Photos on iNaturalist	ITIS Original Publication citation International Plants Names Index Search efloras.org (Flora of North America) BONAP Distribution Map Consortium of California Herbaria 2	Add an Observation Location Suitability Distribution by County
photos / record / common / links

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: 03/28/2025).