Lexarzanthe Diego & Calderón Romanschulzia is a genus of flowering plants belonging to the family Brassicaceae.

[1] Its native range is Mexico and Central America.

It is found in Costa Rica, Guatemala, and Panamá.

[1] The genus name of Romanschulzia is in honour of Roman Schulz (1873–1926), a German botanist and teacher in Berlin.

[2] It was first described and published in Bot.