The cells of the Dieffenbachiaplant contain needle-shaped calcium oxalate crystals called raphides. If a leaf is chewed, these crystals can cause a temporary burning sensation and erythema. In rare cases, edema of tissues exposed to the plant have been reported. Mastication and ingestion generally result in only mild symptoms.[2] With both children and pets, contact with dieffenbachia (typically from chewing) can cause a host of unpleasant symptoms, including oral irritation, excessive drooling, and localized swelling.[3] However, these effects are rarely life-threatening. In most cases, symptoms are mild, and can be successfully treated with analgesic agents,[4] antihistamines,[5] or medical charcoal.[6] Gastric evacuation or lavage is "seldom"[6] indicated.[4] Jennifer S. Boyle, MD, PharmD, and Christopher P Holstege, MD, note that, "In a large retrospective study of 188 patients with plant oxalate exposure, all cases were determined to be minor and all resolved with minor or no treatment". [4] They also note that, "In patients with exposure to toxic plants, 70% are children younger than 5 years".
Bracken ferns are not poisonous to humans but they are poisonous to animals.
only some fish are poisonous to humans
Snakes are poisonous to humans but not to Meerkats.
NO, ladybugs are not poisonous to humans, they can affect small animals but they are not poisonous to humans
cotton poisonous
Boron is not poisonous to humans, plants, or animals.
Yes, eye shadow can be poisonous to some living things. It is not poisonous to humans, but it can be poisonous to animals.
No lightning bugs are not poisonous to humans.
Well, some are poisonous and some are edible to humans.
Petunias are not poisonous to humans, dogs or cats.
trees, poisonous mushrooms, poisonous fish, anything that seems inedible or poisonous.
No they are not