Coffea is a genus of flowering plants native to tropical Africa and Asia. The seeds of some Coffea species, called coffee beans, are used to flavor beverages and products. Coffee is one of the world's most valuable and widely traded commodities, and is an important export for several countries. Coffee plants have shiny, simple, opposite leaves and small, white, fragrant flowers that grow in axillary clusters. Caffeine, an alkaloid found in coffee seeds and fruits, is a central nervous system stimulant that increases heart rate, blood pressure, and respiration while constricting blood vessels.

1. (Morphology, Propagation & Uses)
By
Hem Chander
Assistant Professor (Botany)
Career Point University Hamirpur (HP) 176041
hemchander78@gmail.com

3. • 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 used to
flavor various beverages and products.
• The fruits, like the seeds, contain a large amount of caffeine,
and have a distinct sweet taste and are often juiced.
•
• 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.

4. Coffee leaves are shiny, simple, and opposite.
Flowers are small, white, and fragrant, in axillary clusters.

38. Caffeine, an alkaloid, is a CNS stimulant: it increases
the heart rate and blood pressure, stimulates
respiration, and constricts blood vessels. It is also an
appetite suppressant and a mild diuretic.