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• Genera
• Species 15

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Ambrosia acanthicarpa Hook.

Hooker's bur ragweed

62 55 Observations

Compositae

Ambrosia artemisiifolia L.

Annual ragweed

4,718 3,725 Observations

Compositae

Ambrosia artemisioides Meyen & Walp.

 

3 1 Observation

Compositae

Ambrosia bidentata Michx.

Southern ragweed

19 18 Observations

Compositae

Ambrosia confertiflora DC.

Bur ragweed

19 19 Observations

Compositae

Ambrosia dumosa (A.Gray) W.W.Payne

Bur-sage

3 2 Observations

Compositae

Ambrosia hispida Pursh

Bay-geranium

10 7 Observations

Compositae

Ambrosia maritima L.

Least Concern

Coastal Ragweed

5 4 Observations

Compositae

Ambrosia monogyra (Torr. & A.Gray) Strother & B.G.Baldwin

Singlewhorl burrobrush

2 1 Observation

Compositae

Ambrosia peruviana Willd.

Wormwood

31 23 Observations

Compositae

Ambrosia polystachya DC.

 

4 1 Observation

Compositae

Ambrosia psilostachya DC.

Dunbible-weed

358 267 Observations

Compositae

Ambrosia salsola (Torr. & A.Gray) Strother & B.G.Baldwin

Burrobrush

1 1 Observation

Compositae

Ambrosia tenuifolia Spreng.

Bur ragweed

51 31 Observations

Compositae

Ambrosia trifida L.

Giant Ragweed

957 785 Observations

Compositae

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