Poisonous Plants Quiz

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Instructions: Beautiful but dangerous! Test your knowledge of toxic plants that can be found in gardens, fields, and forests.

1.
Which common garden flower has all parts toxic, especially the seeds, and was historically used as a heart medicine?
A
Peony
B
Chrysanthemum
C
Foxglove (Digitalis)
D
Hydrangea
2.
What poisonous plant was used to execute the philosopher Socrates in ancient Greece?
A
Nightshade
B
Hemlock
C
Wolfsbane
D
Mandrake
3.
Which beautiful flowering shrub, common in warm climates, is toxic in all parts including the smoke from burning it?
A
Azalea
B
Oleander
C
Camellia
D
Hibiscus
4.
Deadly Nightshade (Atropa belladonna) gets its name "belladonna" from what historical use?
A
Women used it to dilate pupils for beauty
B
Poisoning enemies
C
It was named after a queen
D
It was used as a perfume
5.
Which common spring bulb flower is toxic if eaten, particularly the bulbs?
A
Daffodil (Narcissus)
B
Snowdrop
C
Crocus
D
Tulip
6.
What three-leaved plant causes severe skin irritation through an oil called urushiol?
A
Stinging Nettle
B
Poison Ivy
C
Giant Hogweed
D
Wild Parsnip
7.
Which popular Christmas plant was long believed to be highly poisonous but is actually only mildly toxic?
A
Christmas Cactus
B
Holly
C
Poinsettia
D
Mistletoe
8.
Monkshood (Aconitum) is one of the most poisonous garden plants. What is it also called?
A
Wolfsbane
B
Devil's Trumpet
C
Angel's Trumpet
D
Baneberry
9.
Which invasive plant can cause severe burns and blisters when its sap contacts skin exposed to sunlight?
A
Giant Hogweed
B
Poison Sumac
C
Wild Parsnip
D
Stinging Nettle
10.
The Castor Bean plant produces seeds that contain what extremely toxic substance?
A
Arsenic
B
Strychnine
C
Cyanide
D
Ricin
11.
Which common houseplant contains calcium oxalate crystals that cause mouth and throat irritation if chewed?
A
African Violet
B
Boston Fern
C
Dieffenbachia (Dumb Cane)
D
Spider Plant
12.
What beautiful but toxic plant has large trumpet-shaped flowers that hang downward?
A
Angel's Trumpet (Brugmansia)
B
Trumpet Vine
C
Moonflower
D
Morning Glory
13.
Rhubarb is commonly eaten, but which part of the plant is poisonous?
A
The leaves
B
The flowers
C
The roots
D
The stalks
14.
Which shade-loving ground cover plant produces bright red berries that are toxic to humans?
A
Bittersweet
B
Pachysandra
C
English Ivy
D
Lily of the Valley
15.
Water Hemlock is considered the most toxic plant in North America. Where does it commonly grow?
A
In deep forests
B
In dry deserts
C
In wet meadows and along streams
D
On mountain peaks

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