Eukaryota | Plantae | Pteridobiotina | Tracheophyta | Magnoliopsida | Rosales | Rhamnaceae | Rhamneae | Frangula | Frangula californica
COL:CS5HF | COL:P | COL:CMQ8S | COL:TP | COL:MG | COL:3Z6 | COL:FN6 | COL:KVQV9 | COL:4KZF | COL:6JLG4
(Chatton, 1925) Whittaker & Margulis, 1978 |  | Britton & Brown |  |  | Bercht. & J.Presl | Juss. | Horan. | Mill. | (Eschsch.) A.Gray