Eating the bulbs of tulip plants can cause distressing symptoms of stomach upset, heart palpitations, weakness, and sweating. Furthermore, those who handle tulips regularly may develop signs of an allergic reaction to a chemical, tuliposide, in the tulip plant. “Tulip fingers” refers to a skin reaction of redness, itching, and rash that occurs in those who work with tulips.
Hydrangeas are beautiful flowers that can be poisonous to humans and their pets when ingested. According to Plant Addicts, cyanogenic glycosides in this plant can cause vomiting, diarrhea, and depression. Cats and dogs who chew on the plants may suffer stomach distress, loss of appetite, and rapid heart rate. While hydrangeas are poisonous, they usually do not cause death.
16. Rosary Pea
If you live in tropical areas of Florida, you may find the rosary pea in your yard. This invasive plant contains a poison called abrin. According to the CDC, abrin poisoning can occur by either consuming or breathing in the seeds. Inhalation of abrin may result in coughing, wheezing, fever, difficulty breathing, and sweating. Consuming abrin can cause vomiting, diarrhea, and hallucinations.