Monotypic Amaryllidaceae genera

Hannonia is a genus of plants in the Amaryllis family. It contains only one known species, Hannonia hesperidum, endemic to Morocco and confined to Western Morocco, Promontory of Hercules. The specific epithet comes from Greek έσπερος, of evening, as the flowers open in the late afternoon.

Lapiedra is a genus of Western Mediterranean plants in the Amaryllis family. It now contains only one known species, Lapiedra martinezii, native to Spain and Morocco.

Plagiolirion is a monotypic genus in the family Amaryllidaceae endemic to Colombia. It has only one known species, Plagiolirion horsmannii, which is rare in the wild and was thought to be extinct until it was rediscovered in the Río Cauca Valley in 1989.

Mathieua is a genus of South American plants in the family Amaryllidaceae. It contains only one known species, Mathieua galanthoides, native to Peru but reportedly extinct.

Traubia is a genus of Chilean plants in the Amaryllis family. Only one species is recognized, Traubia modesta, native to northern and central Chile.

Schickendantziella is a plant genus in the Amaryllidaceae. It has only one species, Schickendantziella trichosepala, native to Argentina and Bolivia.