Grapes (Vitis vinifera) + Raisins; Cher­ries (Prunus spp.); Goose­ber­ries (Ribes uva-crispa); Seaber­ries (Hip­pophae rham­noides). Black­cur­rants (Ribes nigrum) and Red­cur­rants (Ribes rubrum) are gen­er­al­ly not list­ed as tox­ic. How­ev­er, these berries (as well as the leaves and stems of the plants) con­tain enough harm­ful sub­stances to cause severe poi­son­ing in cats.