Leaves are flat above the middle but convex on both sides below, with a submedian keel on the upper surface, apiculate to acuminate, often with a red subulate tip.

Bracts are horizontal, very thin, long-lanceolate, half encircle the stem, acuminate, light green or red, and prone to withering quickly after flowering.

[1] The leaves of the glaucous form of Dudleya brittonii are covered with a dusty, chalky, mealy white epicuticular wax.

[2] Dudleya brittonii is similar in appearance to D. pulverulenta, which shares an overlapping distribution, and D. ingens, which only occurs further south.

[1] Dudleya brittonii was discovered by a Mr. Howard E. Gates at the mouth of a canyon north of the 32nd parallel, supposedly "midway between Descanso and Ensenada."

Researchers who have spent many years studying Dudleya brittonii, like Thomas W. Mulroy, agree with the conclusion that both forms deserve proper taxonomic recognition.

[6] Dudleya brittonii occurs from extreme northwest Baja California from La Misión south to the vicinity of Eréndira and on the island of Todos Santos.