These are woody shrubs that, in nature, can reach even 50 meters in height! It has sharp and pinnate leaves, that grow on the right and left sides of the branch, from which they arise. From its small flowers, usually of a yellow color, fruits are born - their real stroing point. The fruits represent very particular capsules, formed by five cloves, each of which contains numerous seeds. It is a very cultivated and exploited genus, especially for the wood it supplies, which is considered extremely valuable and which is used widely.