| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|---|---|---|---|---|
| Hydrocharitaceae | Vallisneria americana | Vallisneria, Water-celery, Tapegrass, Eelgrass | Lakes, rivers, estuaries, sounds. | NS and QC west to ND, south to FL, TX, NM, AZ; south into tropical America {or is this all or partly V. neotropicalis?}. |  |
| Hydrocharitaceae | Vallisneria denseserrulata × spiralis | Aquatic. | Known from coastal and inland FL and inland AL, but likely to be much more widespread. | ||
| Hydrocharitaceae | Vallisneria neotropicalis | Large Water-celery, Large Eelgrass | Spring runs; other aquatic habitats. | FL Panhandle, s. FL, and apparently from e. SC west to TX in the Coastal Plain; Cuba. |  |
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