| Wedelia tegetis Strother, 1991 |
| Wedelia tehuantepecana B.L. Turner, 1988 |
| Wedelia trilobata (L.) Hitchc., 1893 |
| Wedelia vexata Strother, 1991 |
| Wedelia xylopoda B.L. Turner, 2004 |
| Werneria Kunth, 1818 |
| Werneria mocinniana DC., 1837 |
| Werneria nubigena Kunth, 1820 |
| Werneria stuebelii Hieron., 1895 |
| Willdenowa Cav., 1791 |
| Willdenowa glandulosa Cav., 1791 |
| Willoughbya Neck. ex Kuntze, 1891 |
| Willoughbya argyrostigma (Miq.) Kuntze, 1891 |
| Willoughbya aspera (Miq.) Kuntze, 1891 |
| Willoughbya badieri (DC.) Kuntze, 1891 |
| Willoughbya cordifolia (L. f.) Kuntze, 1891 |
| Willoughbya globosa J.M. Coult., 1895 |
| Willoughbya gracilis (Sch. Bip. ex Miq.) Kuntze, 1891 |
| Willoughbya guaco (Bonpl.) Kuntze, 1891 |
| Willoughbya halei Small, 1903 |