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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Ambrosia bidentata

Ambrosia bidentata Michx.

Ragweed, Lanceleaf Ragweed, Southern Ragweed

Asteraceae (Aster Family)


USDA Symbol: AMBI2

USDA Native Status: L48 (N)


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Plant Characteristics

Duration: Annual
Habit: Herb
Size Notes: Up to about 3 feet tall.
Fruit: Fruit is a cypsela (pl. cypselae). Though technically incorrect, the fruit is often referred to as an achene.

Bloom Information

Bloom Color: Green
Bloom Time: Jul , Aug , Sep , Oct


USA: AL , AR , CT , GA , IA , IL , IN , KS , KY , LA , MD , MN , MO , MS , NC , NJ , NY , OH , OK , SC , TN , TX , VA , WV

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Ambrosia bidentata in USDA Plants
FNA: Find Ambrosia bidentata in the Flora of North America (if available)
Google: Search Google for Ambrosia bidentata


Record Modified: 2023-03-02
Research By: CBR

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