| Family | Genus | Species |
|---|---|---|
| Bromeliaceae | 82 | 1829 |
| Cyperaceae | 111 | 3596 |
| Ecdeiocoleaceae | 2 | 5 |
| Eriocaulaceae | 12 | 501 |
| Flagellariaceae | 1 | 8 |
| Joinvilleaceae | 1 | 4 |
| Juncaceae | 8 | 286 |
| Mayacaceae | 1 | 4 |
| Poaceae | 882 | 8797 |
| Rapateaceae | 16 | 34 |
| Restionaceae | 60 | 507 |
| Thurniaceae | 2 | 8 |
| Typhaceae | 3 | 77 |
| Xyridaceae | 4 | 43 |