Is allspice a nightshade

No, allspice is not a nightshade. Allspice comes from the dried berries of the Pimenta dioica tree, which is part of the myrtle family (Myrtaceae). Nightshades, on the other hand, belong to the Solanaceae family and include plants like tomatoes, potatoes, and eggplants. Therefore, allspice is distinct from nightshade plants.