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Poisonous Plants, list and characteristics


Poisonous plants: here is a list oftoxic plantsfor humans and animals. From the slightest reactions to those that can prove fatal.

About a third of plants can exert a toxic action on the human body. However, there are few plants that can be lethal. The active ingredients contained in plant tissues, in humans, can lead to intoxication, various kinds of disorders or lead to death. On this page we will look at some of thepoisonous plantsmore notes.

Castor bean, Ricinus communis

The first example of poisonous plantit is undoubtedly the castor. Even small amounts ofRicinus communis they can be lethal to a child. Castor leaves contain ricinin, an alkaloid that is particularly toxic to humans but which is the main source of food for some species of silkworm.

Belladonna, Atropa belladonna

The toxicity of onepoisonous plantit does not depend only on the organism that ingests it but above all on the quantity, farmers know something about it: goats can graze the leaves ofpretty Womanwithout suffering any damage if the quantity ingested is not excessive, however milk and meat are toxic to humans if they are consumed just after grazing.

The toxicity of belladonna can be exerted directly if humans ingest thempoisonous berries. Belladonna berries can cause delirium, vomiting, and in severe cases, seizures and death.

Pyrethrum, Chrysanthemum cinerariaefolium

Somepoisonous plantsthey can replace insecticides and pesticides in industrial crops. Pyrethrum (Chrysanthemum cinerariaefolium) contains pyrethrin, a very toxic organic substance for most insect species. Pyrethrins are used in the defense of agricultural crops and for the disinfestation of warehouses and homes. Pyrethrins, if ingested, can also be toxic to humans.

Rosary tree, Arbus precatorius

Betweenpoisonous plantsmost dangerous for humans is a legume, it is the Rosary tree (Abrus precatorius L.), includes 4 species native to tropical and subtropical regions, among these species, A. precatorius is cultivated for its seeds that contain high amounts of abrin phytotoxin, a very protein toxic to humans so much so that swallowing a single seed of this plant can lead to mote.

In India it is very common to commit murders by exploiting the toxicity of these seeds: the killer rubs a blade on the seed ofpoisonous plantand it will be enough for him to wound - even superficially - his opponent to bring him to death.

Fox grass, Aconitum lycoctonum and Aconite napellus

Thefamous poison arrowsthey are prepared with aconite. Aconitus includes 280-300 plant species, widespread in the mountainous regions of the northern hemisphere. The plant is rich in toxic alkaloids especially in its root system: the lethal dose for humans is just 1 - 4 mg.

Cicuta major, Conium maculatum

The alkaloids present in the plant tissues of the greater hemlock can cause damage (even serious) to the nervous system.

Devil's weed, Jimson weed or Datura stramonium

It can cause hallucinations and manifest its toxicity with various symptoms affecting the nervous system.

Bracken fern, Pteridum aquilinum

Its plant tissues are rich in phytotoxic substances capable of producing harmful effects on the bone marrow.

St. John's wort, Hypericum perforatum

Those looking for stinging and burning plants will find a treasure in St. John's wort. Contains poisonous substances which, reacting with sunlight, cause severe burns and skin lesions.

Lily of the valley, Convallaria majalis

Thethrushis a poisonous plant, everyone knows, especially those who followed the TV series Breaking Bad. In the Breaking Bad series the protagonist, Walter White, used thethrush “Lily of the valley”To trigger typical poisoning symptoms in a child.

Oleander, Nerium oleander

Like lily of the valley, oleander is also a toxic ornamental plant. Oleander and lily of the valley release toxic active ingredients even in the water, so you have to pay attention to the cut flower pots.

Toxic ornamental plants

We have reported lily of the valley and oleander, however there are other poisonous houseplants and ornamental plants. For the sake of completeness we point out the hellebores such as mistletoe and peonies and the poinsettia with its irritating and poisonous milk.

The poisonous berries of the yew (taxus baccata) often adorn Italian gardens, especially in the north. Yet they contain a phytotoxic substance that can cause cardiac arrest.

Many varieties of hydrangea (Hydrangea macrophylla) have flowers that are poisonous because they are rich in cyanide.

The boxwood used for hedges (Boxus sempervirens or common boxwood) is rich in alkaloids such as bussina, parabuxin, buxinidin and cyclobuxin. The substances can cause vomiting, diarrhea and abdominal pain, electrolyte imbalances and in the most severe cases of poisoning also convulsions, lung congestion and death from asphyxia. The plant is also toxic to animals.

Poisonous mushrooms

In nature we don't have to protect ourselves only frompoisonous plants. There are many poisonous mushrooms with a deadly effect. For all information, please read the page: deadly poisonous mushrooms.

Another related article of ours that may interest you is Plants that cause burns: what they are and remedies


Video: 25 poisonous plants u0026 flowers you might have at your house (December 2021).