Baileya (the desert marigolds) is a genus of plants in the aster family Asteraceae.

The leaves, which may range from being entire to deeply lobed, mostly occur in a basal cluster.

[3] Desert marigolds typically have their main bloom in the spring, extending through July.

[4] Baileya species are used as food plants by the larvae of some Lepidoptera species including Schinia miniana (which feeds exclusively on the genus) and Schinia pallicincta (which feeds exclusively on B. pauciradiata).

The genus is named after US microscopist and West Point professor Jacob Whitman Bailey (1811–1857), known for his studies of diatoms.