| Scientific Name | Author | English Name |
|---|---|---|
| Lessonia adamsiae | C.H. Hay, 1987 | |
| Lessonia brevifolia | J. Agardh, 1894 | |
| Lessonia fuscescens | Bory de Saint-Vincent, 1826 | Southern brown kelp |
| Lessonia nigrescens | Bory de Saint-Vincent | |
| Lessonia tholiformis | C.H.Hay, 1989 | |
| Lessonia trabeculata | Villouta & Santelices | |
| Lessonia variegata | J. Agardh, 1877 | |
| Lessoniopsis littoralis | (Tilden) Reinke | Strap kelp |
| Macrocystis integrifolia | Bory de Saint-Vincent | Small giant kelp |
| Macrocystis pyrifera | (Linnaeus) Agardh, 1820 | Giant kelp |
| Nereocystis luetkeana | (Mertens) Postels & Ruprecht | |
| Postelsia palmaeformis | Ruprecht | Sea palm |