| Family | Genus | Species |
|---|---|---|
| Bromeliaceae | 83 | 1859 |
| Cyperaceae | 104 | 3680 |
| Ecdeiocoleaceae | 2 | 5 |
| Eriocaulaceae | 12 | 539 |
| Flagellariaceae | 1 | 8 |
| Joinvilleaceae | 1 | 4 |
| Juncaceae | 8 | 315 |
| Mayacaceae | 1 | 4 |
| Poaceae | 874 | 9142 |
| Rapateaceae | 17 | 35 |
| Restionaceae | 52 | 508 |
| Thurniaceae | 2 | 8 |
| Typhaceae | 3 | 77 |
| Xyridaceae | 5 | 60 |