of the bulbs can be fatal, causing nausea, vomiting and diarrhea.
parts of these plants can cause intense burning and irritation of the
mouth and tongue. Death can occur if the base of the tongue swells
enough to block the passage of air.
and roots can be poisonous in large amounts, causing convulsions and other
nervous symptoms. This plant has been fatal to cattle.
parts are poisonous and cause nausea, vomiting, depression, breathing
difficulties, coma. Rarely fatal.
parts of the plant are poisonous, causing abnormal thirst, vision
distortions, delirium, incoherence, coma. Often fatal. A significant
grazing livestock poison in North America 1.
parts of this plant contain a highly irritating oil with urushiol.
Skin reactions can include blisters and rashes. Urishol can be
spread readily to clothes and back again, and has a very long life.
Infections can follow scratching. Despite the common name, urushiol
is actually not a poison but an allergen, and because of this it will not
affect certain people. The smoke from burning poison ivy can cause
reactions in the lungs and can be fatal 1.
bulbs contain colchicine. Colchicine poisoning has been
compared to arsenic poisoning. Symptoms usually begin 2 to 5 hours
after the toxic dose has been ingested, but could be delayed by as much
as 24 hours. Symptoms include burning in the mouth and throat,
fever, vomiting, diarrhea, abdominal pain and kidney failure.
Onset of multiple-system organ failure may occur within 24 to 72
hours. There is no specific antidote for colchicine, although
various treatments do exist 1.
cardenolide toxins, which can
stop the heart 1.
on the Mountain
in most species, the sap tastes so bitter that few victims will eat these
plants long enough to be seriously affected. Some people find casual
handling causes skin irritation as well. Ingestion of the leaves
causes intense burning of the mouth, throat, and stomach, and
uncontrollable salivation. All spurges cause vomiting, nausea, and/or
diarrhea if they are eaten. High doses result in convulsions and
sometimes coma and death 2.
a SINGLE castor bean can be FATAL. The seeds contain ricin,
and according to the 2007 Guiness Book of World Records, this plant is
the most poisonous in the world. Castor oil, long used as a
laxative, is made from the seeds, but the ricin is removed during
processing. If ingested, symptoms typically occur within 2-4
hours. These include a burning sensation in mouth and throat,
abdominal pain, vomiting and bloody diarrhea. Within several days
there is severe dehydration, a drop in blood pressure and a decrease in
urine. Unless treated, death can be expected to occur within 3–5
days; if victims have not succumbed after this time, they often recover
plants and seeds are poisonous, causing nausea, muscle twitches, and
paralysis. Ingestion is often fatal.
leaf stalks are edible (rhubarb pie, anyone?), but the leaves contain oxalic
acid, which is a nephrotoxin. Symptoms of poisoning include
kidney disorders, convulsions, and coma, though it is rarely fatal 1.
to southern Africa and Asia, if found in the US this would be a
cultivated plant. All parts of the plant contain colchicine
and are dangerously toxic if ingested (see Autumn Crocus above).
Contact with the stems or leaves can cause skin irritation 3.
is a highly poisonous plant. It affects the heart and can cause
extreme stress to the digestive system.
of this plant can be fatal. The
heart drug, Digitalis, is made from foxglove. Leaves are
poisonous in large doses. Symptoms include elevated heart rate,
blood pressure and pulse. Can cause confusion and
portions of the plant, unripe fruit, and especially the root contain the
toxin podophyllotoxin, which causes diarrhea and severe digestive
root, when freshly pulled out of the ground, is extremely poisonous and
contains the toxin cicutoxin. This is a central nervous
system stimulant which can result in seizures 1.
glossy red seeds are unfortunately attractive to children. They are
usually about the size of a ladybug with one
black dot. Ingesting a single seed can kill an adult. Symptoms of poisoning include nausea, vomiting,
convulsions, liver failure, and death, usually after several days. The seeds have been used
as beads in jewelry, which is dangerous; inhaled dust is toxic and
pinpricks can be fatal 1.
parts of this plant are poisonous and cause nausea, vomiting, depression,
breathing difficulties, coma. Rarely fatal.
all parts of this plant contain the toxin taxanes, except the red,
fleshy, and slightly sweet berry-like structure surrounding the toxic
seeds. The seeds themselves are particularly toxic if chewed 1.
berries cause gastroenteritis, resulting in nausea, vomiting and diarrhea 1.
of the most toxic plants found in the Western Hemisphere.
Ingestion of a single leaf can be fatal to an adult. The berries
pose the greatest threat to children because they look attractive and
have a somewhat sweet taste. The consumption of two to five
berries by children and ten to twenty berries by adults can be
lethal. Symptoms of poisoning include dilated pupils, sensitivity
to light, blurred vision, tachycardia, loss of balance, staggering,
headache, rash, flushing, dry mouth and throat, slurred speech, urinary
retention, constipation, confusion, hallucinations, delirium, and
plant is poisonous to both animals and humans. The seeds and the pods are
the most poisonous parts, but all parts of the plant are toxic if
consumed. Symptoms of poisoning are nausea, vomiting, stomach pain
and diarrhea 4.
of the Valley
found in this plant (leaves or flowers) cause disorientation and
confusion, upset digestive system, irregular heartbeat and pulse.