Coffea canephora is a tropical evergreen shrub or small tree in the family Rubiaceae and one of the principal cultivated coffee species, commonly known as robusta coffee. The species name Coffea derives from the Arabic qahwa, transmitted through Ottoman Turkish and European languages into modern Latin botanical nomenclature, while the epithet canephora comes from Greek roots meaning “basket-bearing,” referring to how its flowers or bracts resemble a basket.. The common name “robusta” refers to the plant’s comparatively hardy growth habit and higher resistance to disease and environmental stress compared to Coffea arabica. Native to central and western sub-Saharan Africa, particularly regions of present-day Democratic Republic of the Congo and surrounding areas, Coffea canephora thrives in lowland tropical climates with higher temperatures and humidity than those preferred by Coffea arabica.

Coffea canephora was formally described in the late nineteenth century and became agriculturally important in the twentieth century due to its resilience against coffee leaf rust and its suitability for high-yield cultivation. Today it is widely grown in countries such as Vietnam, Brazil, Indonesia, Uganda, and Côte d’Ivoire, forming a major portion of global coffee production. The plant produces red cherries containing two seeds, commonly referred to as coffee beans, which are processed through wet or dry methods, dried, roasted, and ground to produce coffee beverages. Robusta beans are characterized by higher caffeine content and generally stronger, more bitter, and earthier flavor profiles compared to arabica beans, with less acidity and greater body. In addition to beverage use, robusta coffee is frequently employed in espresso blends to enhance crema formation and caffeine intensity.

Coffea canephora contains notable bioactive compounds including caffeine, chlorogenic acids (such as 5-caffeoylquinic acid), trigonelline, cafestol, and kahweol, which contribute to its physiological effects and flavor development during roasting.