Parry’s Tetracoccus (Tetracoccus dioicus) at the Santa Margarita Ecological Reserve, Fallbrook, California, March 2017.
Tetracoccus dioicus (Parry’s tetracoccus, Red shrubby spurge) is listed as rare, threatened or endangered in California and elsewhere (it only grows in Southern California and northern Baja California). It grows in a wild, messy tangle of twigs. Its leaves at first look a lot like those of Bushrue. It’s named “Tetracoccus” in reference to the four-lobed fruits (not in the photo).