Symptoms of Elderberry Poisoning in Dogs. Elderberry plants are toxic due to amygdalin, a cyanogenic glycoside that is present throughout the plant, except in the ripe berries. Teas made from elderberry leaves are also toxic and are a common cause of fatality in humans.Crushed seeds or roots can also cause skin irritation upon contact. Four o'clock is a garden flower that also grows wild in some parts of southwestern United States. Alkaloids in the roots and seeds can be moderately toxic for dogs. Most symptoms are limited to vomiting and diarrhea as well as topical skin irritation.It said that signs to watch for in cats are dilated pupils but pinpoint pupils in dogs. ... A cat would have to eat quite a lot of poppy seeds to exhibit symptoms of toxicity. It's basically an opiod (think morphine) toxicity, as opiods are present in very low doses in poppies, especially the seeds.Because of its eye-catching blue flowers, lobelia has enjoyed relative popularity amongst gardeners across the world. However, pet owners should be aware that the plant contains toxins which can be harmful to humans and animals alike. Felines can be especially badly affected if they eat any part of the lobelia plant.
