Botanical name: Coffea canephora Family: Rubiaceae (Coffee family)
Synonyms: Coffea robusta
Robusta Coffee grew indigenously in Western and Central Africa. It was not recognized as a species of Coffea until the 19th century, about a hundred years after Coffea arabica. The plant has a shallow root system and grows as a robust tree or shrub up to about 10 m. It flowers irregularly, taking about 10-11 months for cherries to ripen, producing oval shaped beans. Leaf-stalk is 1-2 cm long, hairless. Leaves are drying thickly papery, elliptic, elliptic-oblong, or occasionally ovate-oblong, 15-30 × 6-12 cm, hairless on both surfaces, base wedge-shaped to broad, margins flat or occasionally crisped-wavy, tip long-pointed with tip 1-1.8 cm. Secondary nerves are 10-12 pairs. Inflorescences with cymes 1-3 in each leaf axil, each cyme 3-6-flowered, stalkless to stalked with stalks up to 7 mm. Flower-stalks are up to 2 mm. Sepal cup is hairless. Flowers white to pink, funnel-shaped. Flower tube is 5-16 mm; petals 5-7, spatula-shaped to narrowly elliptic, 8-19 mm, obtuse to rounded. Fruit is red, round, 1.0-1.2 cm across, smooth when dry, hairless. The robusta plant has a greater crop yield than that of Coffea arabica. As it is less susceptible to pests and disease, robusta needs much less herbicide and pesticide than arabica.
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