According to Wikipedia, "The avocado (Persea
americana), a tree likely originating from south-central Mexico, is
classified as a member of the flowering plant family Lauraceae. The
fruits of the plant, also called an avocado (or avocado
pear or alligator pear), is botanically a large
berry containing a single large seed. Avocado trees are
partially self-pollinating, and are often propagated through grafting to
maintain predictable fruit quality and quantity.
Avocados are
cultivated in tropical and Mediterranean climates of many countries,
with Mexico as the leading producer of avocados in 2019, supplying 32%
of the world total.
The fruit of domestic varieties has a
buttery flesh when ripe. Depending on the variety, avocados have green,
brown, purplish, or black skin when ripe, and may be pear-shaped,
egg-shaped, or spherical. Commercially, the fruits are picked while
immature, and ripened after harvesting."