| 1 | Elymus | canadensis | Canada Wildrye | Grasses | Poaceae | Magnoliopsida |
| 2 | Elymus | glabriflorus var. australis | Southeastern Wildrye (australis) | Grasses | Poaceae | Magnoliopsida |
| 3 | Elymus | glabriflorus var. glabriflorus | Southeastern Wildrye (glabriflorus) | Grasses | Poaceae | Magnoliopsida |
| 4 | Elymus | glabriflorus | Southeastern Wildrye | Grasses | Poaceae | Magnoliopsida |
| 5 | Elymus | hystrix | Eastern Bottlebrush Grass | Grasses | Poaceae | Magnoliopsida |
| 6 | Elymus | macgregorii | Early Wildrye | Grasses | Poaceae | Magnoliopsida |
| 7 | Elymus | repens | Quackgrass | Grasses | Poaceae | Magnoliopsida |
| 8 | Elymus | riparius | Riverbank Wildrye | Grasses | Poaceae | Magnoliopsida |
| 9 | Elymus | villosus | Hairy Wildrye | Grasses | Poaceae | Magnoliopsida |
| 10 | Elymus | virginicus var. halophilus | Saltmarsh Virginia Wildrye (halophilus) | Grasses | Poaceae | Magnoliopsida |
| 11 | Elymus | virginicus var. intermedius | Intermediate Virginia Wildrye (intermedius) | Grasses | Poaceae | Magnoliopsida |
| 12 | Elymus | virginicus var. virginicus | Virginia Wildrye (virginicus) | Grasses | Poaceae | Magnoliopsida |
| 13 | Elymus | virginicus | Virginia Wildrye | Grasses | Poaceae | Magnoliopsida |