Theobromine is found an alkaloid found in chocolate that is only poisonous to human in high levels. Theobromine is used to treat high blood pressure. Modern medicine used the alkaloid as a diuretic, heart stimulant and a vasodilator (blood vessel widener).
Poisonous Winter plant - Devil’s Ivy…
Devils Ivy is a vining evergreen, often used as decoration. It is also grown on some aquariums with the roots of the Ivy in the water. This is beneficial for the life of the plant and the aquarium as the plant absorbs many nitrates for its growth.
Devil’s Ivy is toxic to cats and dogs because of the presence of raphides. The entire plant is toxic to humans with symptoms of ingestion including oral irritation, vomiting and difficulty swallowing.
The poisonous Winter time plant Holly
Famously recognised as a winter plant, the berries of various species of holly are slightly poisonous to humans, although its poison properties have always been exaggerated…
Glaucarubin is used to treat cancer growth or tumours caused by uncontrollable or abnormal cell division, which can spread through other parts of the body through the blood stream. The organic chemical used in the medicine is found in the tropical plant, Simarouba glauca.
Winter plant: Winter Aconite
The winter Aconite bloom yellow in the winter and when ingested can cause mild stomach upset. The plant can also irritate the skin if in contact.
Monocrotaline is found in plants of the Crotalaria genus. A paste made from the Crotalaria sessiliflora can be used to treat headaches. It is also used as a detoxifier for DDT and arsenic. Certain flowers in the Crotalaria genus are especially poison, particular to livestock.
The posionous winter plant Helleborus niger aka Christmas rose
Pure white (or sometimes blushed pink) petaled flower known as the “christmas rose” blooms in late winter to spring. If this flower is ingested, it can cause skin irritation and severe discomfort. It belongs to the same plant family as the buttercup, the Ranunculaceae.
Lapochol has been seen as a treatment for cancer, however its potential is now low due to its toxic side effects. The compound is natural and found in the wood of the Handroanthus impetiginosus, commonly known as the Lapacho tree and is a yellow, skin-irritating powder.