Vascular Plants of the Gila Wilderness

Presented in Association with the
Western New Mexico University Department of Natural Sciences

Ambrosia trifida Linnaeus
(Great Ragweed)

Family: Asteraceae

Status: Native

Synonyms:
By var., see Allred

Ambrosia trifida can reach over 6 feet tall. The leaves are palmately cleft into usually three lobes. Ambrosia trifida prefers moist habitats unlike most other Ambrosia species in the Gila Wilderness.
Please click on an image for a larger file.

Ambrosia trifida, photo Russ Kleinman, Bill Norris, Richard Felger and the Asteraceae Workshop, Burro Mtns., Mangas Springs, Sept. 12, 2007

Ambrosia trifida, inflorescence, photo Russ Kleinman, Burro Mtns., Mangas Springs, Aug. 24, 2008

Ambrosia trifida, leaf, photo Russ Kleinman, Burro Mtns., Mangas Springs, Aug. 24, 2008

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