Question

Nigrum is one of the species of the genus
(a)Mangifera
(b)Solanum
(c)Triticum
(d)Pisum

Answer 1

The genus to which the nigrum belongs consists of many essential vegetables and fruits. It is said to be one of the largest and most complex genre consisting of more than 1500 species. Various other species that belong to this genus are Tuberosum (potato), Lycopersicum (tomato).

Complete step by step answer:
Nigrum is one of the species of the genus Solanum and its scientific name is Solanum nigrum. This plant is commonly known as Makoi or Black nightshade and it is one of the largest and most variable species groups of the genus Solanum. Solanum is a large group of flowering plants that contains food crops such as the potato, the tomato, and the eggplant which are the three most highly economical crops. It also consists of plants like the nightshades and horse nettles as well as plants that are cultivated for their ornamental flowers and fruit.

So, the correct option is ‘Solanum’.

Additional information: Let us look at the other plant genus mentioned in the options:
Mangifera: Mangifera belongs to a family known as Anacardiaceae which is commonly known as the cashew family. The best-known species of this genus is the common mango whose scientific name is Mangifera indica.
Triticum: This genus is known as the common wheat genus as it consists of various wheat species under it. The most common species of this genus is Triticum aestivum which is one of the most widely grown crops in the world.
Pisum: Pisum is a genus belonging to the family Fabaceae and mainly contains species of the pea plant. The most common being the plant Pisum sativum also known as the garden peas.

Note:
-Plant parts of nightshade are used as traditional medicine as well as food.
-Unripe berries of some species of nigrum can be toxic and induce abdominal pains, vomiting, and diarrhea.
-This toxicity is attributed to high levels of solanine.