Scientific name: arachis hypogea
The peanut is not a true not and, in fact, related to the pea - they are both legumes. Peanuts develop in a pod, like peas, with 1-4 peanuts in each pod. The pods force themselves underground to mature. Peanuts are usually sold in shops removed from their shell, roasted and salted. Peanuts are also frequently ground into a fine paste called peanut butter which is good to eat on sandwiches with jam or jelly. Some people get a violent allergic reaction to eating peanuts, called anaphylactic shock, which can kill them. As this allergy is more common in children and more children each year are being found to have it, peanuts are often banned in schools. The peanuts in the picture are unopened, still in their shells.