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Typica vs. Bourbon: Reading Coffee’s Family Names

Understand Typica and Bourbon varieties, their wider genetic families, and how Caturra, Mundo Novo, Catuaí, SL28 and SL34 relate.

By Mara EllisonPublished July 20, 2026Updated October 25, 20264 min read

Quick Answer

Typica and Bourbon are two important Arabica varieties, and their names also identify wider families of related varieties. In World Coffee Research's catalog, Typica has bronze young leaf tips, large beans and low yield potential; Bourbon has green tips, average beans and medium yield potential. A coffee can be Bourbon-related without being the Bourbon variety itself.

Red coffee cherries cluster along a leafy branch, with a hillside blurred behind.

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A Variety and a Genetic Group Are Not Interchangeable

A variety is a named cultivated plant type. A genetic group brings together varieties with close genetic relationships. World Coffee Research's catalog explanation distinguishes these two levels of identity.

Caturra, for example, derives from Bourbon but is a separate variety. A bag marked “Caturra” gives you a more specific name than “Bourbon-related.” The family connection adds context rather than replacing the variety name.

What the Named Varieties Look Like in a Catalog

WCR's Typica and Bourbon entries give this comparison of the named varieties:

Typica and Bourbon plant traits

Typica and Bourbon plant traits
Plant characteristic	Typica	Bourbon
Stature	Tall	Tall
Young leaf tips	Bronze	Green
Bean-size category	Large	Average
Yield-potential category	Low	Medium

Leaf-tip color describes young growth, rather than ripe cherry color. Bean size and yield potential are comparative catalog categories; growing conditions also affect the harvest. Both entries describe susceptibility to coffee leaf rust.

Three Relationships That Explain Many Labels

These familiar names show three ways varieties can be connected:

How Caturra, Mundo Novo and Catuaí are connected

How Caturra, Mundo Novo and Catuaí are connected
Variety	Connection
Caturra	A natural mutation of Bourbon associated with compact growth.
Mundo Novo	A natural cross between Typica and Bourbon, subsequently selected in Brazil.
Catuaí	A deliberate cross between Mundo Novo and Caturra, made by Brazil's Instituto Agronômico (IAC).

A mutation is an inherited change within a lineage, while a cross brings parental lines together. Catuaí's parentage shows how one named variety can connect both families.

A personal note: A family name makes a coffee label more interesting to me when I can follow one clear connection. Catuaí’s link to Mundo Novo and Caturra is the kind of detail I would enjoy keeping, without feeling that I need to memorize a whole family tree. It gives the plant a history while leaving the finished coffee room to surprise me. I am more curious about how that named variety fits a producer’s farm than about assigning one flavor to all of its relatives. The label becomes a starting point for learning about a particular coffee.

The SL28 and SL34 Example

WCR places SL28 in the Bourbon-related group and SL34 in the Typica-related group. Each remains a distinct named variety.

SL28's recorded selection history names a population called Tanganyika Drought Resistant. SL34 was reportedly selected from a tree labelled “French Mission,” a term often associated with Bourbon introductions. WCR's genetic findings instead link SL34 to the Typica group, calling that simple reading of its selection story into question. The historical label and the genetic relationship are different pieces of information.

Why the Two Names Traveled So Widely

The WCR history of Arabica traces related coffee populations from Ethiopia through Yemen and onward along different routes. Typica spread through India and Java, then European botanical collections and the Americas. Bourbon takes its name from Bourbon Island, now Réunion, where coffee introduced from Yemen became established in the early eighteenth century.

These routes moved small populations of plants and seeds through colonial trade and cultivation, helping explain why related varieties became so widespread. Today's family relationships draw on genetic research as well as the written history of those seed movements.

What These Names Tell You About Buying Coffee

Choose the coffee's flavor description, roast and intended use first. The variety name adds a story about the plant; producer and processing information connect it to a particular lot.

For a closer comparison, look for Typica and Bourbon from the same producer and harvest, with the same processing method and comparable roast styles. Tasting a washed Typica from one farm beside a natural Bourbon from another means comparing two finished coffees with several differences, rather than isolating variety.

Ask the roaster whether the lot is single-variety or mixed, and look for producer information that supports the planting identity. Roasted bean shape alone is a poor way to verify a variety. Our coffee bean types guide puts variety alongside species and trade names.