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

10y 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 bracket fungi poisonous?

Some bract fungi are poisonous but they are injurious to plants .


Poisonous chemicals produced by some moulds are called?

rj rules


Are all plants nutritious in some degree to herbivores?

No, some plants are poisonous to all animals.


Are some Plant cells dangerous to humans?

Some plants are poisonous to stop animals from eating them. Poisonous plants include foxgloves, lupins, deadly nightshade, and belladonna. Poison Ivy may leave blisters if it touches bare skin. Nettles have tiny hairs on their leaves that inject you with a poison if you brush against them.

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.


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 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.


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.


Are bracket fungi poisonous?

Some bract fungi are poisonous but they are injurious to plants .


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

Sure. It depends on what kind of plant the leaf is from or what chemicals are on the leaf. Some plants will kill you. At Christmas they always warn that the Poinsettas are poisonous.


Poisonous chemicals produced by some moulds are called?

rj rules


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.


Are some Plant cells dangerous to humans?

Some plants are poisonous to stop animals from eating them. Poisonous plants include foxgloves, lupins, deadly nightshade, and belladonna. Poison Ivy may leave blisters if it touches bare skin. Nettles have tiny hairs on their leaves that inject you with a poison if you brush against them.