Coffea

Coffea is a genus of flowering plants in the family Rubiaceae. Coffea species are shrubs or small trees native to tropical and southern Africa and tropical Asia. The seeds of some species, called coffee beans, are roasted and ground to brew into various coffee beverages. The fruits, like the seeds, contain a large amount of caffeine, and have a distinct sweet taste. The plant ranks as one of the world's most valuable and widely traded commodity crops and is an important export product of several countries, including those in Central and South America, the Caribbean and Africa. The coffee trade relies heavily on two of the over 120 species, Coffea arabica (commonly known simply as "Arabica"), which accounts for around 55% of the world's coffee production, and Coffea canephora (known as "Robusta"), which accounts for around 45%. Both coffee species are vulnerable to shifts, caused by climate change, in their growing zones, which are likely to result in a decline in production in some of the most important growing regions.