What Do Coffee Tree Species Look Like?

Ever wonder why your cup of coffee tastes radically different depending on where it’s from? That difference starts with the coffee tree itself—its species, variety, and genetic lineage. Though you only see the green or roasted bean, each originates from a unique tree with specific growing habits, fruit appearance, and flavor potential. If you’ve ever asked what kind of plant produces coffee or why some beans taste fruity while others are earthy, the answer begins with the coffee tree species.

There are two main commercial coffee species: Arabica and Robusta. Within Arabica alone, there are dozens of varieties—some ancient, some modern hybrids—that determine not just flavor but also plant hardiness, yield, and adaptability. Around 70% of your coffee’s flavor profile comes from the tree variety, according to coffee researcher Dr.illy.

The Two Main Coffee Species

The coffee plant you’re likely familiar with is an Arabica or Robusta tree. Arabica makes up most specialty coffee and is known for its complex flavors, while Robusta is harsher, higher in caffeine (over twice that of Arabica), and generally excluded from the specialty category—though some washed Robustas from India and Africa are now challenging that notion.

Arabica Varieties & Their Unique Traits

Typica – The Original Elegant Arabica

Typica is the oldest and most traditional Arabica variety, originating in Ethiopia. All other Arabicas are descendants of Typica. It produces a clean, elegant cup but is highly susceptible to rust disease, has low yields, and is now rare outside Central and South America. Its beans are large and oval (or ‘tapered’), distinct from the rounder Bourbon beans. Famous Typica-derived varieties include Mandheling, Blue Mountain, Elephant Bean (Maragogype), Kenyan beans, Yirgacheffe, and Gesha. Typica trees have bronze-tipped leaves. It prefers shaded growing conditions.

Bourbon – The Round-Beaned Classic

Bourbon is another foundational Arabica variety, possibly a mutation of Typica that occurred after being taken to Yemen. It was first cultivated on the island of Bourbon (now Réunion), giving it its name. The beans are rounder than Typica’s, and the plant produces a sweet, balanced cup. Bourbon spread from Yemen to Brazil and the Americas in the 1700s. A notable offshoot is Bourbon Amarello (Yellow Bourbon), which ripens yellow instead of red and has become a favorite in Brazilian COE competitions. Bourbon also requires shade to thrive. A rare mutation, Bourbon Pointu (or “Slim Bourbon”), had half the caffeine but was fragile and low-yielding.

Notable Arabica Mutations & Cultivars

SL28 & SL34 – Kenya’s Acidic Powerhouses

Developed by French and British researchers in Kenya during the early 20th century, these Bourbon descendants thrive in high-phosphate soils and produce iconic citrusy, wine-like acidity. They are difficult to grow outside Kenya and are responsible for the country’s signature cup profile.

Geisha (Gesha) – The Late Bloomer That Conquered Cups

Originally from Ethiopia’s Gesha region (phonetically similar to ‘geisha’), this variety traveled through Kenya, Tanzania, Costa Rica, and finally Panama, where it skyrocketed to fame in the 2000s. In consecutive years (2005–2007), Geisha won Panama’s Best of Panama competition and fetched $130 per pound at auction in 2007. It’s now one of the most sought-after varieties globally, celebrated for floral, tea-like, and tropical notes. Despite its global success, Geisha is part of the Typica family and a testament to Ethiopia’s genetic diversity.

Yellow Bourbon (Bourbon Amarello) – Brazil’s COE Star

This yellow-fruited Bourbon variant ripens to a golden hue rather than red. Popular in Brazil, especially among COE winners, Yellow Bourbon is prized for both filter and espresso brewing. Other yellow-fruited arabicas include Yellow Caturra and Yellow Catuai.

Caturra – The Short, Productive Workhorse

Discovered in Brazil during the 1950s, Caturra is a natural mutation of Bourbon. It’s shorter than traditional Bourbon plants, making harvesting easier, and offers good cup quality though slightly inferior to Bourbon. It adapts well to full sun (sun-grown coffee) and high-density planting, though it requires more fertilization. It performs best between 700–1700 meters, with higher altitudes yielding better flavor at the cost of lower yield. Caturra is sensitive to biennial bearing. Yellow Caturra is a less acclaimed yellow-fruited variant.

Pacas & Villa Sarchi – Central American Favorites

Pacas, discovered in El Salvador in 1935, is a high-yielding Bourbon mutation that became a parent in many breeding programs. Villa Sarchi, a dwarf Bourbon mutation from Costa Rica, has been gaining recognition in coffee competitions.

Maragogype (Elephant Bean) – The Giant Bean

This Typica mutation produces beans roughly three times larger than standard Arabica. Originating in Brazil’s Bahia state in 1870, Maragogype beans are visually striking but often lack complexity and can taste earthy unless grown at higher elevations (above 1000m). They are delicate to process due to their size and low yield makes them economically marginal. Roasters must adjust methods for their low density.

Arabica Hybrids (Within the Species)

Mundo Novo – Brazil’s Tall Producer

A natural cross between Bourbon and Typica, Mundo Novo is high-yielding, disease-resistant, and produces quality cups. It became a staple in Brazil but grows very tall (over 3m), complicating harvest.

Catuai – The Wind-Resistant Workhorse

A cross between Mundo Novo and Caturra, Catuai combines Caturra’s compact size with improved fruit retention. It comes in red and yellow-fruited versions, with red generally performing better in competitions. It’s one of Brazil’s four main commercial varieties.

Pacamara – The Big-Beaned Sensation

A cross between Maragogype and Pacas, Pacamara beans are among the largest in specialty coffee. Developed in El Salvador, this variety has won numerous COE awards for its complex cup profile. It’s favored for its balance of size, acidity, and sweetness.

Kent – India’s Resilient Strain

Discovered in India, Kent is a Typica hybrid valued for its high yield and disease resistance, though it hasn’t achieved widespread accolades in cupping competitions.

Arabica x Robusta Hybrids (Interspecific Crosses)

Timor – The Disease-Resistant Ancestor

Found in East Timor, Timor is a natural hybrid of Arabica and Robusta with mostly Arabica chromosomes. It’s less flavorful but paved the way for disease-resistant varieties. High-quality washed Timor beans from East Timor have entered the specialty market, but they are rare.

Catimor – The High-Yield Workhorse with a Flavor Trade-off

Developed in Portugal’s Timor colony, Catimor is a cross between Caturra and Timor. It’s extremely productive and resistant to rust but historically known for poor cup quality. Colombia, a Catimor-derived variety from Colombia’s coffee research, has become a mainstay with better cup characteristics. Many countries have worked to improve Catimor’s flavor, but it still struggles to compete at the highest cupping levels. It often underperforms at high altitudes compared to pure Arabicas.

Icatu, Ruiru 11, & Chandragiri – More Hybrids with Variable Results

Icatu is a multi-generation Brazilian hybrid with improving cup quality and resistance. Ruiru 11, from Kenya, boosts disease resistance and yield but has disappointing flavor. Chandragiri, from India, is a newer high-yield, rust-resistant hybrid with unproven cup potential.

Frequently Asked Questions

What are the two main types of coffee plants?

The two primary commercial coffee species are Arabica and Robusta. Arabica is known for its complex, nuanced flavors and comprises most specialty coffee. Robusta is harsher, more bitter, higher in caffeine (more than double that of Arabica), and usually excluded from specialty-grade coffee—though some washed Robustas from Africa and India are changing that perception.

What is the most popular coffee variety?

Bourbon and Typica are among the most historically significant and widely planted Arabica varieties. However, in terms of global production, varieties like Caturra, Catuai, and their hybrids (such as Mundo Novo and Catimor) are more common due to their higher yields and disease resistance. Geisha has gained immense popularity in specialty coffee due to its exceptional cup quality.

Why do coffee varieties matter?

Coffee varieties determine not only the flavor profile of the brewed cup but also the plant’s resistance to disease, adaptability to altitude and climate, yield, and required growing practices (like shading or pruning). Up to 70% of a coffee’s flavor is determined by its genetic variety, making it a critical factor for farmers, roasters, and drinkers alike.

What is the difference between Arabica and Robusta coffee plants?

Arabica plants are generally more delicate, grow at higher altitudes, and produce beans with complex flavors including acidity, sweetness, and aromatic notes. Robusta plants are hardier, grow at lower altitudes, contain roughly twice the caffeine, and produce harsher, more bitter cups. Robusta is rarely considered specialty grade, though some exceptions exist.

What is Geisha coffee and why is it famous?

Geisha (or Gesha) is a coffee variety originating from Ethiopia that gained worldwide fame after winning the Best of Panama competition multiple times starting in 2005. It’s renowned for its unique floral, jasmine, tea-like, and tropical fruit flavors. It’s a Typica-family variety that was nearly lost to obscurity before its rediscovery in Panama.

What does a coffee tree look like?

Arabica coffee trees typically have oval or elliptical leaves, grow to around 2–4 meters tall (depending on the variety), and produce red or sometimes yellow coffee cherries. Each cherry usually contains two seeds (coffee beans). The trees require shaded environments, regular pruning, and specific climate conditions to thrive.

FrontStreet Coffee Beans Featuring Classic Varieties

Try FrontStreet Coffee’s Panama Geisha (Esmeralda), renowned for its jasmine, tropical fruit, and tea-like profile. Also explore their Ethiopia Yirgacheffe, a Typica-influenced lot with bright acidity and floral notes. For something more classic and balanced, their Brazil Yellow Bourbon offers sweet, nutty tones ideal for espresso or filter. Freshly roasted within 5 days · Orders placed before 17:00 ship the same day · Next-day delivery across most of Guangdong Province.