I. Introduction
Plants are very crucial for all living things but poisonous plants cause a severe economic loss to the livestock industries all over the world, and toxins of these plants are also dangerous for humans [1]. Ingesting poisonous plants causes burning of the mouth, skin irritation, diarrhea, headache, blurred vision, nausea, arrhythmia, dizziness, tremors, and many other diseases [2]. A remarkable number of poisonous plants are grown throughout the world, and rosary pea, sugar apple, mexican prickly poppy, itchytree, giant calotrope, hashish, colocynth, dodder, moonflower, oleander, blue plumbago, crepe jasmine, philodendron, arrowhead, dumb canes, caladium, golden pothos, and stinging nettle are commonly seen poisonous plants in many countries. Rosary pea is native to Australia and Asia, seeds of this plant contain abrin which is a highly toxic toxalbumin that can be deadly for humans and animals. Seeds of sugar apple are extremely poisonous, dried fruit and powder of seeds are used as insecticide and fish poison in India. Mexican prickly poppy has extremely dangerous toxin characteristics which contains isoquinoline alkaloids and almost all parts such as bark, flowers, fruits, leaves, roots, seeds, and stems are highly poisonous. Fruits of itchytree are poisonous, and this plant is generally grown in Southern Asia, and Northern Australasia. Giant calotrope contains calotropin which is a toxic cardenolide that causes respiratory and cardiac failure. Flower stalks of hashish are highly poisonous [3]. Colocynth has some toxic side effects and causes gastrointestinal disorders. Dodder is harmful to horses, affects the liver and nervous system of horses, and absorbs poisons from the host plants. All parts of the moonflower are toxic which contains a threatening level of tropane alkaloid, ingesting this plant can cause anticholinergic effect, tachycardia, hallucinations, nausea, and diarrhea [4]. Flower, leaf, stem, and twig of oleander contain toxic ingredients such as digitoxigenin, neriin, oleandrin, and oleondroside, and poisoning of this plant affects almost all parts of the body. Blue plumbago irritates the eyes and skin, and fruit, seed, and root of this plant are toxic. Crepe jasmine contains more than 66 different types of alkaloids, and almost all parts of it are toxic [5]. Philodendron, arrowhead, dumb canes, caladium, and golden pothos are poisonous houseplants, and these plants can be a danger to pets and children. Stinging nettle causes severe skin irritation, and is highly toxic for pets.