Definition that contains baja california
- goldfields small slender woolly annual with very narrow opposite leaves and branches bearing solitary golden-yellow flower heads; southwestern Oregon to Baja California and Arizona; often cultivated
- cnemidophorus tigris active lizard having a network of dusky dark markings; of semiarid areas from Oregon and Idaho to Baja California
- crotalus mitchellii markings vary but usually harmonize with background; of southwestern Arizona and Baja California
- akwa'ala a member of the Akwa'ala community in Baja California
- western whiptail active lizard having a network of dusky dark markings; of semiarid areas from Oregon and Idaho to Baja California
- pellaea ornithopus cliff brake of California and Baja California having purple-brown leafstalks
- pinus quadrifolia five-needled pinon of southern California and northern Baja California having (sometimes three-needled or four-needled showing hybridization from Pinus californiarum)
- kiliwa a member of a North American Indian people living in northern Baja California
- bufo boreas of a great variety of habitats from southern Alaska to Baja California west of the Rockies
- loganberry red-fruited bramble native from Oregon to Baja California