| Scirpus incompletus (Nees) T. Koyama, 1958 |
| Scirpus interstinctus Vahl, 1805 |
| Scirpus junciformis (Kunth) Poir., 1817 |
| Scirpus koilolepis (Steud.) Gleason, 1942 |
| Scirpus lacustris L., 1753 |
| Scirpus lacustris subsp. validus (Vahl) T. Koyama, 1962 |
| Scirpus lacustris var. validus (Vahl) Kük., 1926 |
| Scirpus lappaceus Lam., 1791 |
| Scirpus lithospermus L., 1753 |
| Scirpus longifolius Hook. & Arn., 1841 |
| Scirpus longispicatus Smyth, 1899 |
| Scirpus luzulae L., 1762 |
| Scirpus maculosus Vahl, 1806 |
| Scirpus malheurensis L.F. Hend., 1930 |
| Scirpus maritimus L., 1753 |
| Scirpus maritimus var. macrostachyos Michx., 1803 |
| Scirpus maritimus var. paludosus (A. Nelson) Kük., 1926 |
| Scirpus maritimus var. robustus (Pursh) Kük., 1926 |
| Scirpus melas Kunze ex Kunth, 1837 |
| Scirpus mexicanus C.B. Clarke ex Britton, 1892 |