California Buckthorn yana nufin nau'in shrub ko ƙananan bishiya (Frangula californica) wanda ya kasance a California, Oregon, da Baja California. Hakanan ana san shi da wasu sunaye na yau da kullun kamar kofiberry, kofi na California, da kofi na daji na California. Shishrub yawanci yana girma har zuwa ƙafa 15 tsayi kuma ana siffanta shi da duhu koren ganye da gungu na kanana, jajayen berries. An yi amfani da haushin Buckthorn na California bisa ga al'ada don kayan magani, kuma ana amfani da shi don gyaran shimfidar wuri.