| Common Name | Scientific Name | Code |
| n/a | Nanozostera P. Toml. & U. Posl. | NANOZ |
| dwarf eelgrass | Nanozostera japonica (Aschers. & Graebn.) P. Toml. & U. Posl. | NAJA5 |
| eelgrass | Zostera L. | ZOSTE |
| Nanozostera japonica | Nanozostera americana (den Hartog) P.S. Toml. & U. Posl. | NAAM3 |
| Nanozostera japonica | Zostera americana den Hartog | ZOAM |
| Nanozostera japonica | Zostera japonica Aschers. & Graebn. | ZOJA2 |
| Nanozostera japonica | Zostera nana Roth | ZONA |
| Scouler's surfgrass | Phyllospadix scouleri Hook. | PHSC2 |
| seawrack | Zostera marina L. | ZOMA |
| surfgrass | Phyllospadix Hook. | PHYLL4 |
| toothed surfgrass | Phyllospadix serrulatus Rupr. ex Aschers. | PHSE11 |
| Torrey's surfgrass | Phyllospadix torreyi S. Wats. | PHTO |
| Zostera marina | Zostera marina L. var. latifolia Morong | ZOMAL |
| Zostera marina | Zostera marina L. var. stenophylla Aschers. & Graebn. | ZOMAS |
| Zostera marina | Zostera pacifica L. | ZOPA |