| Lagurus L., 1753 |
| Lagurus cylindricus L., 1759 |
| Lagurus ovatus L., 1753 |
| Lamarckia Moench, 1794 |
| Lamarckia aurea (L.) Moench, 1794 |
| Lamarkia Moench, 1794 |
| Lamarkia tenella DC., 1813 |
| Lancearia Hitchc. & Chase, 1910 |
| Langsdorffia Regel, 1863 |
| Lanuginosa Hitchc. & Chase, 1910 |
| Lappago Schreb., 1789 |
| Lappago aliena Spreng., 1822 |
| Lappago berteroniana Schult. ex Steud., 1854 |
| Lappago occidentalis Nees ex Hook., 1897 |
| Lappago oplismenoides Speg., 1883 |
| Lappagopsis Steud., 1855 |
| Lasiacis (Griseb.) Hitchc., 1910 |
| Lasiacis Griseb., 1864 |
| Lasiacis acuminatua Swallen, 1957 |
| Lasiacis compacta (Sw. ex Wikstr.) Hitchc., 1911 |