Tree belonging to the family of Oleáceasa, whose trunk is short, thick and twisted, its top is wide and highly branched, rising to about 4 to 5m of height, has evergreen leaves, leathery, opposite, elliptic, entire, narrow, pointed, glossy green on the upper side and whitish on the underside; their flowers arranged in panicles are white, small, auxiliary sprigs bring the fruit, comprising a drupe ovoid, with about 2 to 4 cm long axis depending on the varieties is olive, which has a bitter taste. The color is green - yellow or bluish in some varieties, have a slightly pinkish color and closes the seed core.
Pollination is anemophilous. Originally from the East, is largely grown in Portugal, where one takes its fruit, either for canning or for the extraction of oil.
The tree, at ideal conditions, can reach a height of between 6 and 10m, although nowadays, the growth is controlled by the "human hand" so that harvesting is easier.
Although it thrives in most soils, requires deep and fertile soil, clear weather and dry and an average temperature of 15 º C.
Despite being very drought resistant, the olive yields are much higher when you have plenty of water.