Leptochiton is a genus of South American plants in the Amaryllis family.

[4][5] There are 2 known species, native to Ecuador and Peru:[6] Leptochiton has phytomelanous seeds, which is unique among the tribe Hymenocallideae.

[7] It is closely related to Ismene, to which it shared a common ancestor 26.14 million years ago.

It is the sister group to Hymenocallis, from which it separated 24.46 million years ago.

[1] Hymenocallis Leptochiton Ismene