Almonds

The almond, Prunus dulcis (formerly classified as Prunus amygdalus, or Amygdalus communis) is a small deciduous tree belonging to the Subfamily Prunoideae of the Family Rosaceae. An almond is also the fruit of this tree. It is classified with the peach in the Subgenus Amygdalus within Prunus, distinguished from the other subgenera by the corrugated seed shell. The fruit lacks the sweet fleshy outer covering of other members of Prunus (such as the plum and cherry), this being replaced by a leathery coat containing the edible kernel which is often called a "nut" in common and culinary usage, but which is a drupe and not a nut in botanical parlance.

--- Wikipedia