Poisonous flowers | Complete list and details of Poisonous flowers2021

Poisonous Flowers. It may look seductive and harmless, but appearances can be deceptive, and have you ever been surprised why a particular flowering plant is toxic?

Most plants store toxic substances in non-toxic starting materials, which only become toxic when the plant is injured. Some of the poisons are toxic to flowers and plants, but others can lead to serious health problems such as cancer, heart disease and even death. Living organisms protect themselves by forming protective shells or protective membranes around their bodies and organs. They can also release toxins and highly toxic chemicals into the air, water, soil, air pollution, atmosphere and other environments.

This article helps to identify some of the most common toxic chemicals in flowering plants and other plants. It also summarises the effects of these chemicals on plant, animal and human health and on the environment.

Lily of the Valley

The Lily of the Valley, scientifically known as Convallaria majali, is a long-lived perennial native to the eastern United States and Canada. It grows up to 12 cm high and is easy to grow, which gives it a well-drained soil. The rhizomes, which tend to form dense colonies, can spread up to 10 km from the plant’s root system.

The flowering begins in spring and lasts three weeks and lasts up to three months. It has an attractive façade with bell-shaped flowers and is therefore one of the most popular plants for gardeners in the USA and Canada.

But how dangerous can this stunning ornamental be and how dangerous is it to human health? Some plants in this part of the lily of the valley are considered potentially toxic, including lilies, chrysanthemums, roses and many other flowering plants. In fact, the plant itself is considered toxic due to its toxic effect on the human body.

Heart glycosides are organic compounds that lead to a variety of arrhythmias and can be fatal in large quantities. About 30 different cardiac glycosides contain more than 1,000 times as much of the toxic substance as the plant itself, making it dangerous to grow in pets and infants.

The most important glycosides found in the lily of the valley are convallatoxin and conv-allamarin. Signs of lily – the – sebum poisoning are nausea, vomiting, diarrhea, dizziness, blurred vision, abdominal pain, nausea and vomiting and diarrhea.

The lilies of the valley are known to be the birthplace of corn, but there are other common names for this flowering plant.

Castor Oil Plant

The castor oil plant (Ricinus communis) comes from the family Euphorbiaceae and is native to India and Africa. This flowering perennial is often grown commercially for its oil, but it is also used as a food source for many other plants in the plant family. It grows about 3 meters high and stores about 2,000 to 3,500 grams of oil per square meter of plant.

Most parts of the castor oil plant are harmful, but the seeds are the most toxic part, and they can cause serious health problems for humans and animals. It releases its castor cells by chewing or decomposing its seeds, leaves, leaves and seeds.

The leaves, on the other hand, can cause neuromuscular disorders in large quantities, and ricin is a well-known poison that is highly toxic to both humans and animals. Signs and symptoms of castor poisoning include nausea, vomiting, diarrhea, abdominal pain, dizziness, headaches, nausea and vomiting.


If you have curious little children or pets who like to spend time in the garden, avoid flowering plants with a thimble. These fascinating herbaceous plants, also known as Digitalis spp. Are undoubtedly attractive, but require extra care because they produce poisonous flowers.

Direct skin contact with any part of the plant can cause skin irritation and headaches, dizziness, blurred vision, nausea, vomiting and diarrhea. Although the thimble, which is partly known for its ornamental and healing purposes, is poisonous, it does not harm humans or animals. It is known to cause nausea and vomiting, especially leftover food, as well as rashes, itching and irritation.

The most common thimble species is Digitalis purpura (D. lanata), which typically grows 1 2 / 2 to 2 meters tall when mature. Thimbles can be biennial or short-term, but usually for a few months to a few years.

They have alternating lanceolate leaves with egg-shaped and green color, white or yellowish-green body and yellow-brown head and body.


A beautiful flowering plant that grows in a tuber that could easily be mistaken for another, but actually it is a different plant.

Pears contain two alkaloids, lycorin and scillitoxin, which can both cause cancer in humans and other diseases.

The daffodil, which is classified as a herbaceous shrub, dies after flowering and grows back the following year. Mature plants can reach a height of 80 cm, with a maximum height of 50 cm and a diameter of 30 cm, but they can also reach up to 60 cm in diameter.

The leaves are long and narrow, with a basal cover and have fragrant yellow-white flowers that are found individually or in groups at the end of the trunk. The daffodil flower has six petals, each with one in the middle, and has a diameter of 1.5 – 2 cm and a length of 3 – 4 cm.

Tulips pink tulips

One of the most seductive plants that can grow in any garden or landscape in the world is the tulip, or “tulip” (Tulips indica), a plant species of the genus Tula.

Tulip bulbs

Unlike daffodils, the tulip plant has a poisonous bulb that resembles an onion but is much larger in diameter than the bulb.

Because of this similarity, some animals, such as dogs, accidentally eat tulip bulbs and cause poisoning. Signs of tulip poisoning include vomiting, diarrhea, nausea, vomiting and, in some cases, death, but not always.

Tulips also carry the allergen tulip, which often causes contact eczema in the skin after contact with the plant. Tulip bulbs have the highest concentration of these allergens, but the stems, leaves and flowers contain the same allergen in lower concentrations.

Oleander pink oleander

The oleander grows in tropical and subtropical regions, and the most common of these is oleander.

Nerium oleander (Thevetia peruviana) is a poisonous plant and contains various types of cardiac glycosides, including glycoproteins, glycerol, hydrochloric acid, nitric acid and glycolysis, as well as other toxic compounds.

Some parts of the oleander are toxic, which can cause serious health damage to humans and animals if ingested, and even if taken deliberately, death by oleander poisoning is rare. People poisoned by the flowering plant can have a range of symptoms, including nausea, vomiting, dizziness, headaches, nausea and vomiting. These include vomiting and diarrhea, as well as death, kidney failure, liver failure and kidney damage.

Desert Rose

Adenium obesum, also known as Adenium impala, impala or desert dawn, is a scorpion species of the genus Adium, which is native to South America. It grows to 3 m tall and carries a funnel-shaped tail with a long, slender tail and a short, narrow tail.

The leaves are leathery in consistency and spiral, and when pressed or damaged, parts of the Desert Rose release a juice. The juice contains cardiac glycosides, which are moderately toxic, especially for animals, but also for humans.

Skin contact with the sap can cause irritation and redness, and taking part of the Desert Rose can cause mouth and throat discomfort, nausea, vomiting, diarrhea, nausea and vomiting. In Africa, the sap, roots and stems of this plant were used for hunting large animals. However, the toxicity of Desert Rose has its advantages: the ingestion of parts of it can lead to a reduction in blood pressure, heart rate, blood flow and blood sugar levels.

Angel’s Trumpet (Brugmansia)

In summer and autumn, angel trumpets show large trumpets – like fragrant flowers, often pink, white or yellow. A mature angel trumpet grows 8-14 feet tall and can reach 10-15 feet, and in summer or autumn it can appear as a large flower with large pink or white petals.

Ripe leaves are 6-8 inches long, while the flower is usually 12-inches long (11.5-14 inches in diameter), and mature angel trumpets can reach up to 12 feet tall. Due to their size and fragrant flowers, angel trumpets are highly toxic in the presence of air, water and soil.

The flowers, seeds and leaves carry alkaloids such as atropine, scopolamine and hyoscyamine, and inhaling the flowers can also be harmful. Poisoning can occur when the plant parts are consumed in large quantities, especially in the presence of air, water and soil. Symptoms of poisoning with angel trumpets include headache, nausea, vomiting, diarrhea, dizziness, fainting, dilated pupils, muscle pain and nausea.

Monkshood (Wolf’s Bane) monkshood flower

Monkshood (Aconitum napellus) is a poisonous ornamental that visits many gardens. Its roots and tubers contain alkaloids such as aconite and aconitin, and its roots and tubers contain high concentrations of strong toxins.

Monkshood poisoning occurs when consumed in small amounts and absorbed into the body through broken skin or open wounds. The consequences include diarrhea, cramps, irregular heartbeat and death. However, accidental poisoning by eating the monkshood plant is rare due to its unpleasant taste. Other common names for this are “monkshood” (aconite), “aconitin,” “aconitum napellus” and “monkshood,” and other names such as “cobra” or “clover.”

Larkspur (Delphinium) mountain larkspur

Delphinium spp., also known by the common name lark spur, is often affected by poisoning of farm animals, especially cattle. Delphinium poisoning in humans is rare, but eating part of the flowering plant can be harmful. The seeds and young components of this plant have a high concentration of toxic substances.

In some animals there is no evidence of poisoning with lark spurs, but affected animals experience neuromuscular effects due to the venom.

Poinsettia pink poinsettia

Euphorbia pulcherrima is a popular indoor plant, especially during the Christmas season, and can be grown with modified leaves that resemble flowers, as well as a variety of other varieties.

Although poinsettia is not a recognized poisonous plant, plant breeders have produced a variety of varieties, some of which are red, which is the most common color for poinsettia.

Most plants in the Euphorbiaceae family produce a milky juice, and contact with this juice causes irritation, redness and itchy skin, while ingestion can lead to vomiting and diarrhea. Although milk juice from other euphorbias can have serious effects on animals and humans, milk juice from poinsettias is considered less toxic.

Mountain Laurel white pink kalmia

It is a mountain limberries, also called Kalmia latifolia, native to North America and one of the most common tulip species in Europe, Asia and Africa.

Adult mountain gorgberry plants usually reach a height of about 30 – 40 meters, but can also reach heights of up to 40 meters. The flowers of the mountain lubberries develop into a compound umbels, which are usually pink or white. They have a capsule that extends about 1.5 to 2 meters in diameter and about 4 to 5 centimeters in length.

In addition to its decorative importance, the mountain plant is also characterised by its toxic properties, which often affect the health of its host plants and other plants in the area.

The components of mountain glyberries contain high levels of chlorophyll, a toxic chemical responsible for poisoning humans and animals. Symptoms of poisoning with the mountain goreberry include increased breathing frequency, nausea, vomiting, dizziness, diarrhea and vomiting.

Bleeding Heart

The Bleeding Heart (Lamprocapnos spectabili) is a herbaceous perennial that, once fully established, can reach a height of up to 1.5 meters and a diameter of 3.2 feet.

The flowers are usually pink, but some varieties have different shades; one example is Lamprocapnos spectabilis alba with white flowers. Known for its heart, the bleeding heart plant is native to East Asia and is best suited to well-drained soils with high moisture.

This popular garden plant requires special care, but the beautiful flowers of this plant come at a price; it is not for the faint of heart.

Each plant part contains several isoquinols and alkaloids, and constant contact with the juice can lead to skin irritation.

Hydrangeas hydrangea flower

Hydrangea is one of the most popular flowers in the world and a perennial that is a top favorite with many flower lovers.

The downside, however, is that this ornamental can be poisonous and there is also a risk of eating the flower buds and even the flowers themselves. Hydrangeas, mainly bark, leaves and flowers, contain cyanogenetic glycosides, but hydrangeas have a low content of these components.

Calla Lily

The calla lily is a herbaceous shrub characterized by arrow-shaped foliage, typically enclosed in a spata. It belongs to the family of Araceae and to the genus Calla, a family of shrubs and trees belonging to a group of plants of the family Cactiaceae, which belong to the family of Aridae.

Calla lilies are highly toxic and can be deadly to humans and animals in large quantities. Calla lilies bloom in late spring or early summer, and parts of the plants bloom from mid to spring until late summer. They are an ordinary plant, often grown as cut flowers or as an indoor plant.

Baby’s Breath

Some species, such as Gypsophila paniculata, are perennial species, while some are annual species and are often used as filler in bouquets. Some of these plants are native to Europe, but some species in the US and other parts of the Middle East and North Africa are perennial, as are some plants in Africa, South America and Asia.

Ripe plants grow to a height of about 50 – 120 cm, and some mature plants can reach a height of 30 – 40 cm, with a maximum height of about 60 cm. Herbaceous plants in the Carnations family have the shape of a flower with bluish-green leaves and a long, narrow, slender body.

The plant parts contain saponins and gyposenins, which can lead to allergic reactions in humans and other animals as well as in animals. Although the baby respiratory plant is not highly toxic, it can trigger an allergic reaction in some people.

The effects include irritation of the gastrointestinal tract, and the baby’s breathing air is often absorbed by pets, so it can lead to irritation of the lungs.

Naked Lady Lily (Amaryllis) orange amaryllis

Lady Nude is an ornamental ornament in South Africa and one of the most famous and famous statues of women in the world. She is also the subject of many films and books.

The other known name is the naked female lily, a species of the genus Lady Lilies from South Africa. The plant is an ornamental with funnel-shaped flowers and bare, leafless stems, similar to the Lady Nude.

The amaryllis of the plant contains other toxic components that could harm humans and animals. Poisoning naked female lilies often leads to the death of humans and other animals such as birds, reptiles and amphibians.

Iris yellow iris flower

The ornamental lily (Iris spp.) belongs to the family Iridaceae, and its genus has many species and varieties. It has a flowering period of about two to three weeks, with flowering periods of up to two months.

This perennial is a bulb rhizome with a long, slender trunk and a short, narrow trunk. It has outer petals that hang down to a length of about 2.2 cm and an inner petal that hangs down.

This iridescent plant contains an iris with a diameter of about 1.5 cm and an outer petal length of 2.6 cm. Clinical signs of iris poisoning include nausea, vomiting, diarrhea, abdominal pain, dizziness, nausea and vomiting. The risk of poisoning is generally considered low, but clinical symptoms can cause symptoms such as vomiting and diarrhoea.

Water Hemlock

One of the most important features is its long bloom in spring and early summer, which develops into a dense, dense flower canopy with a long, bright orange-yellow color and a bright yellow head.

The trunk and leaves of the hemlock are highly toxic due to the presence of cicutoxin, a toxic chemical compound. Cicutoxins cause poisoning of humans, animals, birds, reptiles, amphibians, fish and birds. Water that it poisons starts to eat the toxic parts of the plant, but can also cause poisoning on leaves, roots or leaves themselves.

Morning Glory pink morning glory

Dawn (Ipomea spp.) is a flowering plant of the family Convolvulaceae, which blooms in early summer. Climbers have trumpet-shaped flowers with heart-shaped leaves and trumpet-shaped flower heads.

The most notable variety of the morning splendour is the morning splendour (Ipomea spp.), which blooms in late spring and early summer. Keep the Morning Glory plant out of reach of children and pets as it may harm them.

Its seeds contain toxic lysergic alkaloids similar to LSD, and large-scale ingestion can lead to diarrhea, liver failure and hallucinations.

Lantana pink and yellow lantana

Lantana (Lantanas camara) is a flowering plant that, due to its invasive growth characteristics, tends to become a weed. It is usually a dense shrub to 2 – 4 m tall and the color of the flowers varies from yellow to orange, white, cream, red and pink. The ornamental shrubs have small, colorful flowers that quickly add value to the garden.

Lantana’s flowers attract butterflies and bees with their scent, but there are also potential dangers that could do more harm than good to humans and animals. Recognised as a toxic plant, Lantanas produce toxins that cause serious health problems for humans, animals and birds and can damage the environment.

The effects on humans include nausea, vomiting, diarrhea, abdominal pain, nausea and vomiting. Poisoning is common in animals and the first symptoms include inflamed eyes and mouth, rashes, headaches, dizziness, fever, headaches and nausea.

Clematis flower

Clematis, commonly known as the leather flower, is popular with gardeners and flower lovers. Clematise, a member of the buttercup family, and its sister species, lemon grass blossom, are popular with garden and flower lovers for their natural beauty and fragrance.

This perennial and deciduous variety produces a bright color that immediately produces bright colors everywhere. Despite the promising beauty of this plant, there is a potential risk to humans and animals.

The effect is short-lived, but the clematis plant can cause it to behave in a number of ways, including diarrhoea, nausea, vomiting and even death.

Yarrow purple yarrow

Yarrow, also called Achillea millefolium, grows as a perennial plant in Europe and is fast growing and very attractive to humans and animals. Yarrow belongs to the Asteraceae family, which is appreciated for its beauty, but can also be toxic to humans and animals through abuse.

Mature plants usually reach a height of 28-35 cm and have a long, narrow, slender body with a thick, thin, dark green head and a short, flat body.

Several cases of poisoning by yarrow have been reported in the past, and the plant contains toxic chemicals that can cause a variety of diseases including cancer, heart disease, liver disease and kidney disease.


Bloodroot (Sanguinaria canadensis) blooms in spring and is shown in its natural state in this photo from the Natural History Museum of Canada.

Although highly recognized for its medicinal properties and other uses, the plant has toxic properties that can be harmful to humans and animals. The name Bloodwort comes from the red latex produced by the rhizomes of the plants.

The latex contains several alkaloids, such as sanguinarin, which are toxic in large quantities, but there is no clinical evidence of blood poisoning.

Marigold (Tagetes) french marigold

Marigold (Tagetes spp.) is a long-flowering genus in the family of Asteraceae and is found as an annual herbaceous plant in North America, Europe, Asia, Australia and South America.

The flowers are edible, but can be poisonous if consumed excessively, and leaves and roots also have a toxic potential. The flowering period of the flowers is in late spring and early summer, usually from May to June and can also last from July to September.

Peace Lily (Spathiphyllum)

It belongs to the family of araeae (arum) and is shown in a spade field, often surrounded by a white or greenish-white inflorescence. The basal rosette of the leaves is dark green shiny and elongated with lancets.

It is native to tropical America and is consumed in abundance in the USA, Canada, Australia, New Zealand and South Africa. The leaves of the Peace Lily contain a large number of small greenish-white lilies with white or greenish-yellow inflorescences and yellow-green bases.

Peruvian Lily

The Peruvian lily, also known as the lily of the Incas, is a herbaceous perennial that thrives on well-drained soils. The funnel-shaped flower blooms in spring and summer, with a long-lasting flowering plant and a bright pink or red color. It is one of the most popular and popular flowering plants in Peru and the only plant of its genus with the same name.

Planting as a houseplant requires special care, as it is highly toxic and can contain toxic chemicals such as chlorophyll, secondary plant substances and phytoplankton. The leaves are alternately upright or arranged in stems and are about 2 to 3 cm long.

Symptoms of lily poisoning can be as simple as nausea, vomiting, diarrhea, abdominal pain, dizziness, nausea and vomiting.

Rhododendron purple rhododendron bush

Rhododendron is a vibrant and attractive flowering plant, which is a highly valued ornamental with a wide variety of uses, such as as as an ornamental, but also as an attractive plant for the garden.

Some rhododendron species are evergreen, others are deciduous (36), and some are even evergreen, such as rhododendron albinous (37). It is a popular garden shrub that thrives in a variety of climates, from tropical and subtropical climates to temperate and tropical climates.

These plants contain toxic compounds that can poison animals and humans, and clinical effects begin as soon as part of the plant is absorbed. These include the toxic effects of rhododendron, but also other plants such as leaves, leaves from other shrubs and trees.

Buttercup flower

The bright yellow flowers of buttercups will certainly brighten up every area of your garden. This herbaceous flowering plant, belonging to the genus Ranunculus, is widespread worldwide and is considered a weed in some parts of North America. It is located in the USA, Canada, Australia, New Zealand, South Africa, India, Brazil and Mexico.

Buttercup may have alluring flowers, but it is highly toxic to animals and humans and contains the glycosides of cockwort. The plant parts are toxic when ingested and can cause serious health problems for humans and animals.

Pink wisteria

The composite leaves alternate with egg-shaped and elliptical leaves and long, hanging clusters. Did you know that the longest hanging pile of leaves in the world consists of only a few hundred leaves?

The wisteria species are native to Japan and China, and the plant, especially the seeds, are often taken up by hungry pets. Glycosides, toxins and resins are present in some parts of plants, which are known as poisonous ornamental plants. The most common side effects of exposure to the toxic chemicals in the resin are nausea, vomiting, abdominal pain and diarrhea.

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