hass
Pear-shaped, dark green fruit on the tree that turns purple to black when ripe. The skin is medium to coarse and rough in texture. Small to medium size (140-400 grams). The seed is medium sized with 66-70% meat. 
Excellent quality meat with a rich nutty flavor.
 
Tree up to 30 meters high in its native environment, originating in a wide geographic area, extending from Mexico and Guatemala to the Pacific coast of Central America.
As sheets of this tree are alternate, petiolate and leathery, varying in length between 10 and 40 cm, dark green and with little shine on the beam, lighter green and opaque on the underside; It is an evergreen tree, although some varieties lose most of its foliage during the flowering season.
It has small flowers yellowish-green, 3-7 mm long, grouped in panicles that usually appear in a terminal or subterminal position of the last vegetative growth. These flowers have a protogynous dichogamy, as the female and male parts of the same flower mature at different times different (the opening as female is prior to that of the male part).
The fruit it is a berry with a single seed, very variable in size, shape and characteristics of its skin, pulp and seed. When ripe, the skin of the fruits can be from green to dark purple almost black depending on the variety, these they have variable shapes ​​ ranging from round to heavily pumped, with a long neck. 
The pulp is generally light green to greenish yellow, buttery in consistency, very nutritious and with a marked flavor of dried fruits, it has very little sugar content, its protein content being the highest of all fresh fruits, and the rich in mineral salts, organic acids (folic acid and others) and fat-soluble vitamins.
It is a tree with wide climatic adaptation as long as it is free from frost. Temperatures above 36ºC cause damage, being more accentuated if they are accompanied by low relative humidity in the environment. The soils preferred by the avocado tree are loam to sandy loam with good internal drainage; This species is very sensitive to waterlogging, which causes root asphyxia and subsequent development of the fungus Phytophthora cinnamomi Rand , which causes the death of its roots. It does not tolerate periods of drought so it is necessary to support irrigation; as a general rule it is a species very sensitive to salinity although there are standards with a certain tolerance.
This species needs good lighting to be able to fruit satisfactorily, so it is essential that the trees are not shaded. It is a very interesting tree both to exploit it commercially and to keep it in a small rustic farm or garden making the delights of all those who are lucky enough to have the opportunity to harvest its rich fruits, which have a long harvesting period and can be consumed both fresh and to make guacamole, salads, accompaniment to other dishes, cocktails, etc.