There are 9 divisions to categorize true lilies or “Lilium.” 8 are hybrids, and the 9th division is for species lilies.

1 – Asiatic hybrids
2 – Martagon hybrids
3 – Candidum hybrids
4 – American hybrids
5 – Longiflorum hybrids
6 – Trumpet hybrids
7 – Oriental hybrids
8 – Miscellaneous hybrids (LA hybrids and Orienpets)
9 – Species