| Allium haematochiton S. Watson, 1879 |
| Allium helleri Small, 1903 |
| Allium hintoniorum B.L. Turner, 1993 |
| Allium huntiae Traub, 1969 |
| Allium hyalinum Curran, 1885 |
| Allium hyalinum var. praecox (Brandegee) Jeps., 1921 |
| Allium inodorum Aiton, 1789 |
| Allium kunthii G. Don, 1827 |
| Allium longifolium (Kunth) Humb., 1825 |
| Allium macropetalum Rydb., 1904 |
| Allium mannii Traub & T.M. Howard, 1969 |
| Allium maritimum (Torr.) Benth., 1857 |
| Allium melliferum Traub, 1972 |
| Allium mexicanum Traub, 1968 |
| Allium michoacanum Traub, 1970 |
| Allium neapolitanum Cirillo, 1788 |
| Allium neomexicanum Rydb., 1899 |
| Allium nuttallii S. Watson, 1879 |
| Allium ornithogaloides Walter, 1788 |
| Allium ownbeyi Traub, 1969 |