ⓘ List of poisonous plants

List of poisonous plants

ⓘ List of poisonous plants

Poisonous plants are plants that produce toxins that deter herbivores from consuming them. Plants cannot move to escape their predators, so they must have other means of protecting themselves from herbivorous animals. Some plants have physical defenses such as thorns, spines and prickles, but by far the most common type of protection is chemical.

Over millennia, through the process of natural selection, plants have evolved the means to produce a vast and complicated array of chemical compounds in order to deter herbivores. Tannin, for example, is a defensive compound that emerged relatively early in the evolutionary history of plants, while more complex molecules such as polyacetylenes are found in younger groups of plants such as the Asterales. Many of the known plant defense compounds primarily defend against consumption by insects, though other animals, including humans, that consume such plants may also experience negative effects, ranging from mild discomfort to death.

Many of these poisonous compounds also have important medicinal benefits. The varieties of phytochemical defenses in plants are so numerous that many questions about them remain unanswered, including:

  • Which herbivores, specifically, are the plants defended against?
  • Which plants have which types of defense?
  • What are the potential medical uses of these compounds?
  • What chemical structures and mechanisms of toxicity are involved in the compounds that provide defense?

These questions and others constitute an active area of research in modern botany, with important implications for understanding plant evolution and for medical science.

Below is an extensive, if incomplete, list of plants containing one or more poisonous parts that pose a serious risk of illness, injury, or death to humans or domestic animals. There is significant overlap between plants considered poisonous and those with psychotropic properties, some of which are toxic enough to present serious health risks at recreational doses. There is a distinction between plants that are poisonous because they naturally produce dangerous phytochemicals, and those that may become dangerous for other reasons, including but not limited to infection by bacterial, viral, or fungal parasites; the uptake of toxic compounds through contaminated soil or groundwater; and/or the ordinary processes of decay after the plant has died; this list deals exclusively with plants that produce phytochemicals. Many plants, such as peanuts, produce compounds that are only dangerous to people who have developed an allergic reaction to them, and with a few exceptions, those plants are not included here see list of allergens instead. Despite the wide variety of plants considered poisonous, human fatalities caused by poisonous plants – especially resulting from accidental ingestion – rare in the developed world.


1. Poisonous food plants

Many plants commonly used as food possess toxic parts, are toxic unless processed, or are toxic at certain stages of their lives. Some only pose a serious threat to certain animals or certain types of people. Most of these food plants are safe for the average adult to eat in modest quantities. Notable examples include:


2. Other poisonous plants

Countless other plants not commonly used in food or drink are also poisonous, and care should be taken to avoid accidentally contacting or ingesting them. Some of these are popular ornamental plants or are cultivated for purposes other than consumption.

  • clusters 13 17 mm diameter of three seeds compressed together. All parts of the plant including the seeds and roots are poisonous Handling may cause skin
  • List of edible nuts List of companion plants List of poisonous flowers Flower Edible flowers List of useful plants Edible Flowers Zeldes, Leah A. 2011 - 07 - 20
  • sometimes breed in the pools of water that are trapped between the leaves. A. fasciata is listed in the FDA Poisonous Plant Database under the section for
  • genetically identical plants All parts of these plants are known to be poisonous The principal toxin is the alkaloid dauricine. The fruit of Canada Moonseed
  • This is an alphabetical list of plants used in herbalism. The ability to synthesize a wide variety of chemical compounds that are used to perform important
  • highly poisonous is native to temperate regions of Europe, North Africa and Western Asia, while the other three are from southern Africa. The Plant List search
  • these plants as the most poisonous naturally occurring North American genus of leafy plants Poisoning from these plants has been reported a number of times
  • resemble the tassels of female plants The leaves are large, oval and bright green to reddish copper. The clear latex is poisonous and can irritate the skin
  • com 12245691 are - jade - plants - poisonous Watt, John Mitchell Breyer - Brandwijk, Maria Gerdina: The Medicinal and Poisonous Plants of Southern and Eastern

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