| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Poaceae | Tragus australianus | Australian Burgrass | Waste areas around wool-combing mills, perhaps only a waif. | Native of Australia. |  |
| Poaceae | Tragus berteronianus | Spiked Burgrass | Disturbed dry areas, waste areas, along railroad tracks, around wool-combing mills, other mills, and chrome ore piles (where perhaps only a waif). | Native of Africa and Asia. Also reported from chrome ore piles at Newport News, VA. |  |
| Poaceae | Tragus heptaneuron | Waste areas around wool-combing mills, perhaps only a waif. | Native of tropical Africa. | ||
| Poaceae | Tragus racemosus | Stalked Burgrass, Texas Burgrass | Roadsides, disturbed areas, on ballast near old seaports. | Native of Mediterranean Europe and w. Asia. |  |
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