Baileya multiradiata and B. plentiradiata, commonly called Desert Marigold are members of the Aster family, and native to the southwestern United States and to Mexico
They are typically annual, but sometimes B. multiradiata may be perennial.
Desert marigolds typically have their main bloom in the spring, extending through July. Summer thunderstorms may enable a second bloom in October and even into November.
Baileya species are used as food plants by the larvae of several species of insects, most importantly the Desert Marigold Moth (Schinia miniana.) For this species of moth larvae, Baylea is their sole food source.
Desert marigold flowers are also enjoyed by tortoises.