Slayton: Organism not classified in biological species concept

These two organisms cannot be classified according to the biological species concept because they are sterile hybrids created by crossbreeding distinct cactus species.

Crassula "Ivory Pagoda"
hybrid of Crassula barkleyi and Crassula falcata
34.128555, -118.10686

Crassula "Buddha's Temple"
hybrid of Crassula perfoliata var. minor and Crassula  pyramidalis
34.128555, -118.10686