An intoxication by Euonymus japonicus or Japanese spindle (‘Japanse kardinaalsmuts’) in sheep and an intoxication by Pieris japonica or Japanese Pieris (‘Japanse Pieris’) in goats are described. Eight sheep were found dyspneic and salivating; five of them died. Three goats showed signs of vomiting, were grinding their teeth and were staggering along. All three goats died. Diagnosis was made based on case history, clinical signs and necropsy findings (presence of plant material in the rumenal content). The literature on Euonymus and Pieris plant intoxications in sheep and goats is reviewed. Finally, general remarks and guidelines concerning plant intoxications in small ruminants are given.