World flora Plants of the world floraExplore

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• Genera
• Species 8

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Ambrosia acanthicarpa Hook.

Flatspine bur ragweed

62 55 Observations

Asteraceae

Ambrosia artemisiifolia L.

Annual ragweed

4,719 3,726 Observations

Asteraceae

Ambrosia bidentata Michx.

Lanceleaf ragweed

19 18 Observations

Asteraceae

Ambrosia confertiflora DC.

Weakleaf bur ragweed

19 19 Observations

Asteraceae

Ambrosia hispida Pursh

Coastal ragweed

10 7 Observations

Asteraceae

Ambrosia psilostachya DC.

Cuman ragweed

358 267 Observations

Asteraceae

Ambrosia tenuifolia Spreng.

Slimleaf bur ragweed

51 31 Observations

Asteraceae

Ambrosia trifida L.

Giant Ragweed

958 786 Observations

Asteraceae

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