Are all types of cherry trees poisonous to dogs?
—Tina S. The stems, leaves and seeds of cherries and other fruit trees of the genus Prunus contain substances known as cyanogenic glycosides, which can cause vomiting, diarrhea, a lack of oxygen in the blood (cyanosis), decreased heart rate, respiratory congestion, seizures, and coma—and could ultimately lead to respiratory failure and death, if large enough amounts are ingested. Typically, Tina, problems beyond gastrointestinal irritation are not seen with small animals who’ve consumed a few pieces of plant material. Severe clinical effects usually are seen in grazing animals such as horses or other livestock who have ingested large quantities. However, it is still a good idea to discourage your dog from consuming plants of this genus.