Class of the coffee plant: Dicotyledoneae
Subclass of the coffee plant: Sympetalae or Metachlamydeae
Order of the coffee plant: Rubiales
Family of the coffee plant: Rubiaceae
Genus of the coffee plant: Coffea
Some Species of the coffee plant: Coffea Arabica, Coffea Robusta

The genus, Coffea, which the common coffee tree belongs, contains about 25 species. Coffea Arabica is the largest cultivated coffea but other commercially known are Coffea Liberica, Coffea Stenophylla, Coffea Excelsa, and Coffea Canephora (Robusta). By far, Coffea Arabica and Coffea Robusta are the species of coffee plant most commonly cultivated. The other species of coffee plants are not cultivated commercially. There are indoor coffee plants grown for aesthetics because the plant can do well indoors where it is carefully cared for.

The coffee plant originally grew in African tropical forests. Some varieties of coffee plant typically grow over 30 feet. But, in cultivation, for ease of picking of the coffee berry, the coffee tree is seldom allowed over 15 feet. The Arabica coffee plant is typically smaller than the Robusta coffee plant. Coffea Robusta is a shrub type plant. The Robusta coffee plant grows similar to a bush, in that it has several trunks. Although, the coffee plant may have one trunk, it tends to have more. Additionally, this characteristic of trunking is different among the various coffee species.

Coffea Arabica is a tree type plant. The Arabica coffee plant drives a straight up trunk with branches paired off outward and lower branches tend to droop downward.

Cafe - Coffee Plant Link

Aztec's Use of Coffee

Properties of Coffee: Stimulates Intelligence Faculties, Lowers the action of alcoholic beverages, Fortifies the stomach, Helps digestion and lowers fever.