Jaimehintonia is a recently (1993) described monotypic genus from gypseous soils of Nuevo León, México in the Milla clade of Themidaceae. (This clade includes Behria, Bessera, Dandya, Milla, and Petronymphe). It has coarsely tunicate bulbs, purple to pink perianths, and a well-developed hypanthium to which the gynoecium is not fused.
Jaimehintonia gypsophila grows in chalky gypsum soils in Nuevo León and possibly Coahuila, México. The flowers are superficially similar to Androstephium caerulea and are reported to be purple to pink and rarely white. Thad Howard thinks this might be the long-lost Dandya purpusii.