answersLogoWhite

0


Best Answer

I think it is something to do with animals such as horse transferring toxins onto to the plant. But, I not really sure.

User Avatar

Wiki User

12y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

11y ago

This is to protect them from grazing animals.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why do some plants have poisonous chemicals in their leaves?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Natural Sciences

Do chemicals make plants grow or die?

Some chemicals make plants grow. They are called fertilizers. Some chemicals plants make plants die. When intentionally applied, they are the type of pesticide called herbicides. Some chemicals do not affect plants.


Are all plants nutritious in some degree to herbivores?

No, some plants are poisonous to all animals.


Poisonous chemicals produced by some moulds are called?

Mycotoxins.


What are the plants with leaves of the same color?

Some plants with leaves of the same color include snake plants (Sansevieria), Chinese evergreen (Aglaonema), and spider plants (Chlorophytum comosum). These plants have consistent green leaves, although some variations within the species may exist.


What are some plants that are poisonous?

There are thousands of plants that are known to be poisonous in some way. Also to bear in mind is that people react differently to different chemical compounds, some may get ill others not - same applies to allergies. The size and health of an individual also matters, young children (with a lower body mass) are more likely to exhibit extreme symptoms of poisoning. Some plants are extremely toxic to humans, whereas some are toxic to certain animals. In certain plants all of the plant is toxic, and in others only certain plant parts could cause poisoning. For example the only edible part of a tomato plant is the fruit, the leaves and stems are poisonous. Green tomato's and potatoes are also poisonous if eaten. Many flowers are also poisonous and may result in allergic reaction (many people develop rashes when they come into contact with chrysanthemums). Some poisonous plants are: Ricinus communis Digitalis Nerium oleander Thevethia Amaryllus Cestrum

Related questions

Are peace plants poisonous To Children?

The household peace plants are not poisonous to children. Some children can have skin allergies to certain types of peace plants when the leaves are crushed.


Can leaves make you high if you smoke them?

Some plants have leaves which may get you intoxicated if smoked. Many others are poisonous and will kill you. Most have no effect whatsoever.


Are poinsettia leaves poisonous to the touch?

No, the leaves of poinsettias (Euphorbiapulcherrima) are not poisonous to the touch.Specifically, the plant contains a milky substance that can be irritating to some people. The severest reaction will be an upset stomach or diarrhea. The notion of poinsettia body parts as being poisonous comes from its membership in the Spurge family (Euphorbiaceae) of plants. Some family members are poisonous, some not.


Are tomato plants and kiwi plants poisonous to goats?

No, neither kiwi plants or tomato plants are poisonous to goats. Some plants that poisonous to goats are oleander, wild cherry, and lilacs.


Do chemicals make plants grow or die?

Some chemicals make plants grow. They are called fertilizers. Some chemicals plants make plants die. When intentionally applied, they are the type of pesticide called herbicides. Some chemicals do not affect plants.


Do eucalyptus leaves kill other plants?

Yes, eucalyptus leaves contain compounds that inhibit the growth of some other plants. This is known as allelopathy. Eucalyptus leaves can release chemicals that prevent the germination or growth of nearby plants, creating an environment more favorable for the eucalyptus itself.


Are the leaves of tomato plants hazardous if eaten?

Tomato's belong to the plant Family Solonaceae; most members of this family are poisonous in some form (or state). Normally green tomato's contain alkaloids that can be poisonous, therefore it is not advisable to eat the green fruit. The same applies to potato's also Solonaceae) they can be poisonous if eaten when they are green. Other Solonaceae plants that are toxic or have toxic effects are: peppers and tobacco plants.


Can a leaf numb your mouth if you chew on it?

Yes, some plants contain compounds that can cause numbness when chewed, such as the numbing effect caused by the leaves of the Sichuan pepper plant. However, it is important to be cautious, as not all plants that cause numbness are safe to ingest and can be toxic.


How do plants protect themselves from harm?

Plants may become toxic, poisonous or distasteful to grazing animals. Some plants develop sharp spines or thorns. The holly, for instance, has spines round the edge of leaves that grow low down, while the leaves near the top may be spineless.


Are all plants nutritious in some degree to herbivores?

No, some plants are poisonous to all animals.


Poisonous chemicals produced by some moulds are called?

Mycotoxins.


Are bluebells poisonous to sheep?

No, bluebells are not poisonous to sheep. Some poisonous plants for sheep are holly, foxglove, ragwort, and trumpet lily.