| Jaimehintonia B.L. Turner, 1993 |
| Jaimehintonia gypsophila B.L. Turner, 1993 |
| Juncineae Salm-Dyck, 1861 |
| Lomandroideae Thorne ex Reveal, 2007 |
| Maianthemum F.H. Wigg., 1780 |
| Maianthemum amoenum (H.L. Wendl.) LaFrankie, 1986 |
| Maianthemum comaltepecense Espejo, López-Ferr. & Ceja, 1996 |
| Maianthemum flexuosum (Bertol.) LaFrankie, 1986 |
| Maianthemum gigas (Woodson) LaFrankie, 1986 |
| Maianthemum gigas var. crassipes (Standl. & Steyerm.) LaFrankie, 1986 |
| Maianthemum gigas var. gigas (Woodson) LaFrankie, 1986 |
| Maianthemum macrophyllum (M. Martens & Galeotti) LaFrankie, 1986 |
| Maianthemum mexicanum García Arév., 1992 |
| Maianthemum paniculatum (M. Martens & Galeotti) LaFrankie, 1986 |
| Maianthemum racemosum (L.) Link, 1821 |
| Maianthemum racemosum subsp. amplexicaule (Nutt.) LaFrankie, 1986 |
| Maianthemum salvinii (Baker) LaFrankie, 1986 |
| Maianthemum scilloideum (M. Martens & Galeotti) LaFrankie, 1986 |
| Maianthemum septifolium La Frankie, 1986 |
| Maianthemum stellatum (L.) Link, 1821 |