| Division | Species | Functional form | Condition |
| Chlorophyta | Codium fragile | Corticated macrophyte | (−) |
| Ulva californica | Foliose | (−) | |
| Ulva fasciata | Foliose | (−) | |
| Ulva nematoidea | Foliose | (−) | |
| Phaeophyta | Colpomenia sinuosa | Corticated macrophyte | (−) |
| Colpomenia tuberculata | Corticated macrophyte | (−) | |
| Dictyota flabellata | Corticated foliose | (+) (−) | |
| Dictyopteris undulata | Corticated foliose | (+) (−) | |
| Rhodophyta | Petrospongium rugosum | Crustose | (−) |
| Sargassum muticum | Leathery macrophyte | (+) (−) | |
| Silvetia compressa | Leathery macrophyte | (+) | |
| Sphacelaria californica | Filamentous | (−) | |
| Zonaria farlowii | Corticated foliose | (+) (−) | |
| Centroceras clavulatum | Corticated macrophyte | (−) | |
| Chondria californica | Corticated macrophyte | (−) | |
| Chondria decipiens | Corticated macrophyte | (−) | |
| Chondrocanthus canaliculatus | Corticated macrophyte | (−) | |
| Corallina officinalis | Articulated calcareous | (+) | |
| Corallina polysticha | Articulated calcareous | (−) | |
| Corallina vancouverensis | Articulated calcareous | (+) (−) | |
| Cryptopleura ramosa | Foliose | (−) | |
| Endarachne binghamiae | Corticated macrophyte | (−) | |
| Hypnea valentiae | Corticated macrophyte | (−) | |
| Jania crassa | Articulated calcareous | (+) (−) | |
| Jania rosea | Articulated calcareous | (+) (−) | |
| Laurencia pacifica | Corticated macrophyte | (+) (−) | |
| Lithotrix aspergillum | Articulated calcareous | (+) (−) | |
| Pterocladiella capillacea | Corticated macrophyte | (+) (−) | |
| Smithora naiadum | Foliose | (−) |