What Are the Main Types of Coffee Tree Varieties?

If you’ve ever wondered why your cup of coffee tastes wildly different from your friend’s—even if it’s the same ‘blend’—the answer often starts with the coffee plant itself. Not all coffee comes from the same tree, and understanding the main types of coffee species can unlock why certain beans perform better at high altitudes, deliver more caffeine, or taste fruitier than others. This guide breaks down the four primary coffee tree varieties and what makes each unique.

In short, the four main coffee tree species are Arabica (70% of global production), Robusta (20–30%), Liberica (less than 5%), and Excelsa (a rare sub-type of Liberica). Arabica is prized for its balanced flavors and lower caffeine, while Robusta is stronger and more resilient. Liberica is large-fruited with a bold taste, and Excelsa offers high yields and drought resistance.

What Is the Arabica Coffee Species?

Arabica (Coffea arabica) makes up around 70% of the world’s coffee production. It includes globally recognized coffees such as Jamaica Blue Mountain, Yemen Mocha, Brazilian Santos, and Ethiopian Yirgacheffe. These beans are known for their superior cup quality, balanced acidity, and lower caffeine content compared to other species.

Arabica plants prefer high altitudes between 600–1,800 meters, with average temperatures around 20°C, consistent rainfall, and no frost. They thrive on sloped terrain and require careful cultivation. The beans are typically oval-shaped with a narrow, winding center crack and a flatter back. Arabica is more challenging to grow but yields a more complex and aromatic cup, which is why it dominates specialty coffee despite covering less land area.

What About Robusta and the Other Major Species?

Robusta (Coffea canephora), though not detailed in the original text, is the second-most planted species, accounting for approximately 20–30% of global production. It originates from the Congo and is valued for its high caffeine content, strong bitter profile, and resistance to pests and disease. Robusta grows at lower altitudes and warmer climates, making it easier and cheaper to cultivate. It’s commonly used in instant coffee and espresso blends for its crema contribution and bold taste.

The article specifically highlights two other species: Liberica and Excelsa. Liberica (Coffea liberica), also known as the 'large bean' variety, is native to West Africa (Liberia) and parts of Southeast Asia. It grows on towering trees that can reach 18 meters and produces unusually large, sturdy leaves, fruits, and beans. The beans have a thick, tightly adhering seed coat and mature to a reddish-orange color. While its flavor is intense and unique, Liberica accounts for less than 5% of global production due to its niche taste and lower demand. It thrives in lowland areas.

Excelsa (Coffea liberica var. dewevrei), mentioned as another separate species in the text, is actually now considered a subspecies of Liberica. It was discovered in 1904 in the Chari River basin of Africa. Excelsa trees yield small fruits and are notably high-yielding and drought-resistant, though they are not widely cultivated. The cup profile tends to be bold and slightly bitter with strong aromatics.

How Do Growing Conditions Shape Coffee Species?

Different coffee species evolved to thrive in distinct environments, which directly influences their flavor, caffeine content, and cultivation range:

• Arabica demands cooler temperatures (around 20°C), high altitudes (600–1,800m), and regular rainfall. It is grown in countries like Ethiopia, Colombia, Brazil, Guatemala, and Jamaica.
• Robusta prefers warmer, low-altitude regions and is more disease-resistant. It’s commonly grown in Vietnam, Brazil, and parts of Africa.
• Liberica grows best in lowland tropical climates and can reach impressive heights. Its large tree size and bold flavors limit its planting scale.
• Excelsa, as a hardy variant, tolerates tough conditions and offers high productivity, though it remains a minor player in the global market.

These environmental adaptations explain why certain species dominate in specific regions and why flavor profiles vary so widely—from the bright acidity of high-altitude Arabica to the harsh strength of lowland Robusta.

Frequently Asked Questions

What are the four main types of coffee tree species?

The four main coffee tree species are Arabica, Robusta, Liberica, and Excelsa. Arabica makes up about 70% of global production, Robusta 20–30%, Liberica less than 5%, and Excelsa is a rare subtype often grouped with Liberica.

Which coffee species produces the most globally?

Arabica is the most-produced coffee species worldwide, accounting for roughly 70% of all coffee. It is followed by Robusta, which makes up about 20–30% of global production.

Why is Arabica more popular in specialty coffee?

Arabica is favored in specialty coffee for its balanced flavor, pleasant acidity, and lower caffeine levels. It grows at higher altitudes, which slows ripening and develops more complex flavors, making it ideal for single-origin and premium roasts.

What does Liberica coffee taste like and where is it grown?

Liberica coffee has a bold, unique flavor profile and is grown primarily in lowland tropical regions such as parts of Malaysia and West Africa. It accounts for under 5% of global production due to its niche taste and the tall growth habit of the trees.

Is Excelsa the same as Liberica?

Excelsa was once classified as a separate species but is now considered a subtype of Liberica. It is valued for high yields and drought resistance, with a strong, slightly bitter cup profile, though it remains uncommon in global coffee production.

What altitude do Arabica coffee plants prefer?

Arabica coffee plants grow best at elevations between 600 and 1,800 meters, where the climate is mild, with average temperatures around 20°C, well-distributed rainfall, and no frost.

Recommended FrontStreet Beans for Exploring Arabica Diversity

For exploring the diversity within the Arabica species, try FrontStreet Coffee’s BrazilBourbon (Red Bourbon from Hilarion), a balanced medium roast with creamy texture, mild acidity, and notes of nuts and caramel—ideal for learning how terroir shapes Arabica’s profile. The ColombiaSidra (Sidra from Finca Linea) adds tropical complexity with double anaerobic processing, offering stone fruit and sweet florals. For a brighter option, the EthiopiaYirgacheffeGedeb (Gedeb) showcases the classic citrus and floral notes of Yirgacheffe at medium elevation, perfect for comparing regional Arabica expressions. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.