Plant species containing medicinal plant alkaloids have a reputation for having medicinal effects.
However, a new study has found that some plant species contain toxins, which can be harmful to humans.
The new research by researchers at the University of Exeter, in the UK, looked at poisonous plants found in Europe and North America.
They found that two plants, celidonia and the alkaloid celidoxine, are toxic.
Both plants contain a protein known as dioxygenase, which has been shown to have a harmful effect on human health, the research team said.
This is a new finding in plants and has to be investigated further in future research, the team said in a statement.
This study demonstrates that the alkaline alkalids are poisonous, they are toxic and can cause severe toxicity, they show that they can cause serious toxicity to humans and animals.
The team said that the findings support a need for further research into the health risks of plant toxins.
It has long been known that plant alkals can have a negative effect on the health of humans, but these findings suggest that plant toxins can have similar effects to that of alcohol, according to the researchers.
In their study, the researchers analyzed data from the International Centre for Plant and Soil Toxicology (ICPSO) database of toxic plant compounds.
The researchers identified 887 plant species that had been identified as poisonous in Europe in 2016.
Of these, the study authors found 793 plant species contained toxins that can cause cancer, liver damage and other serious effects.
The findings, the scientists said, provide new information about the toxic potential of plant alkalinoids and highlight the need for research into their toxicology.
The plant alkalis are found in a variety of plants, including:Eggplant, tomato, water chestnut, blackberries, mulberries, strawberries, water cress, wild spinach, lemons and parsnips.
They are known to be toxic to humans, especially to the liver and other organs.
They can cause liver damage by causing the enzyme dioxidase, the enzyme that converts acetylcholine into acetyl-CoA, which is toxic to cells, according the National Institute of Environmental Health Sciences.
The study was published in the journal PLOS ONE.