Encelia is a genus of the plant family Asteraceae whose members are frequently called brittlebushes.

In cultivation, the species readily form fertile F1 hybrids, F2s, and backcrosses, but in natural areas of sympatry, F2s and backcrosses are absent or rare.

The phylogenetic sister group of Encelia is a clade comprising the genera Enceliopsis and Geraea.

The three genera are informally called the "Encelia alliance".

[3] Encelia is named in honor of German biologist Christophorus Enzelius, 1517–1583.