| Name | Children | Media (from resource) | Traits |
|---|---|---|---|
| Xyridaceae (yellow-eyed-grass family) | 1 | 0 | 0 |
| Xyris (yelloweyed grass) | 1 | 0 | 0 |
| Xyris indica L. | 0 | 0 | 1 |
| Xystostrophia | 1 | 0 | 0 |
| Xystostrophia umbraculum | 0 | 0 | 1 |
| Youngia (youngia) | 2 | 0 | 0 |
| Youngia japonica (L.) DC. (Oriental false hawksbeard) | 0 | 0 | 1 |
| Youngia paleacea (Diels) Babc. & Stebbins | 0 | 0 | 1 |
| Ypsilandra | 1 | 0 | 0 |
| Ypsilandra alpina F. T. Wang & Tang | 0 | 0 | 1 |
| Yua | 1 | 0 | 0 |
| Yua thomsonii (Laws.) C. L. Li | 0 | 0 | 1 |
| Yuhina Hodgson 1836 | 7 | 0 | 0 |
| Yuhina bakeri Rothschild 1926 (White-naped Yuhina) | 0 | 0 | 1 |
| Yuhina castaniceps | 0 | 0 | 1 |
