| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Poaceae | Dichanthelium ovale var. addisonii | Low Stiff Witchgrass | Dry to damp sandy woods and fields. | MA and MN south to Panhandle FL and TX, also in n. Mexico. |  |
| Poaceae | Dichanthelium ovale var. ovale | Oval-flowered Witchgrass | Dry to damp sandy pinelands. | NY to WI, south to s. FL and e. TX and n. Mexico. Infrequent over most of its range except FL. |  |
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