The Ultimate Poisonous Plants Quiz

Estimated Completion Time
1 min
The Ultimate Poisonous Plants Quiz
Image: DEA/C.DELU/De Agostini/Getty Images

About This Quiz

Plants provide us with oxygen, food, beauty, fragrance and medicine. But plants can also kill. You may even have deadly varieties right outside your kitchen window. Find out how much you know about poisonous plants in this quiz.
The castor bean plant contains what deadly substance?
capsaicin
ricin
Ricin is a poisonous protein toxin found throughout the castor bean plant (mostly concentrated in the seed coating). As few as three seeds can kill a child who swallows them.
atropine

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Which of the following is not one of the symptoms of castor bean poisoning?
nausea
headache
If you're suffering from nausea, abdominal cramps, vomiting, internal bleeding or kidney and circulation failure, you could be the victim of castor bean poisoning.
kidney failure

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Which of the following animals is immune to the deadly nightshade's poison?
pigs
dogs
horses
Horses, as well as rabbits and sheep, can eat the plant's leaves without any ill effects, while birds safely feed on the berries.

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The deadly nightshade's bell-shaped flowers are what color?
red
purple
The deadly nightshade plant is characterized by its purple, scented flowers, as well as its juicy black berries.
blue

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What's the name of the poison found in deadly nightshades, which is often used in eye surgery?
atropine
Atropine, which serves to dilate a patient's pupils, is often used by doctors performing eye surgery. In sufficient doses, though, this poison paralyzes nerve endings and leads to blurred vision, headaches, confusion and convulsions.
scopolamine
ricin

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How do rosary pea seeds become dangerous?
when they're heated
when they're swallowed
when the coating breaks
Until the seed's coating is broken, the poison abrin contained in rosary pea seeds is harmless. So if you swallow them whole and they pass through your digestive track that way, you'll be fine.

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Which group of people does the rosary pea pose the greatest danger to?
Catholics
jewelry makers
The rosary pea poses greater danger to the jewelry maker than to the wearer. There are many reported cases of death when jewelry makers prick a finger while handling the rosary pea.
asthmatics

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What attractive wildflower is considered by many people to be the deadliest plant in North America?
daffodil
water hemlock
The cicutoxin poison present in water hemlock causes violent and painful symptoms -- no amount of the plant's root is considered safe to ingest.
black locust

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The roots of the poisonous water hemlock resemble which vegetables?
potatoes
carrots
parsnips
The water hemlock's deadly white roots are sometimes mistaken for parsnips -- a potentially fatal error.

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What's a common treatment for people who have ingested the toxic oleander plant?
intravenous antibiotics
radiation
stomach pumping
For a chance at successful recovery, patients are induced to vomit, have their stomachs pumped or fed activated charcoal to absorb as much of the powerful poison as possible.

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You Got:
/10
DEA/C.DELU/De Agostini/Getty Images
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