Cultivars

Ethiopia holds more arabica diversity than all cultivated arabica outside the country. An estimated 6,000-15,000 unique varieties carry the heirloom label.

Arabica is allotetraploid; robusta is diploid with nearly twice the caffeine. That gap drives every quality and pricing difference between the species.

Batian is a 2010 Kenyan release with seven parents including SL28 and Timor Hybrid. High-80s SCA scores confirm disease resistance and quality can coexist.

Taken to Réunion from Yemen in 1715, Bourbon gave rise to Caturra, Catuai, and SL28. No arabica lineage spans comparable geographic reach and diversity.

Red, Yellow, and Orange Bourbons carry pigmentation mutations; Pointu is a caffeine synthase variant. Origin and mutation type set the flavor ceiling.

Colombia’s Caturra × Timor Hybrid composite covers 40–50% of national plantings. Above 1,700m in Nariño or Huila it competes fully at specialty standards.

Catimor and Sarchimor are Timor Hybrid-derived rust-resistant arabica cultivars. They dominate arabica in Vietnam, Indonesia, and Central America today.

Catimor, Sarchimor, and Castillo all draw rust resistance from the Timor Hybrid. Catimor yields 30-50% more than standard arabica varieties.

Catuai was crossed in 1949 and released in 1972, now covering 60% of Brazilian arabica. It is the productivity benchmark newer cultivars must beat.

A single-gene dwarf Bourbon mutation from Minas Gerais around 1915. It enabled twice the planting density and became parent to Catuai and Catimor.

An Ethiopian-origin landrace naturalized in Urrao, Antioquia, genetically distinct from Geisha. Above 1,800m it routinely scores 87–89 on SCA cupping.

One of arabica’s wild diploid ancestors, with just 0.3–0.5% caffeine. Its 2021 debut made it specialty’s only commercially available low-caffeine species.

Coffea liberica is the third commercial species: low-altitude and heat-tolerant. Subspecies Excelsa adds tart dark-fruit notes to Southeast Asian blends.

Rediscovered in Sierra Leone in 2018, stenophylla scored 80+ from wild plants. It tolerates 6°C above arabica’s thermal range — coffee’s key climate find.

Coffea is a genus of over 130 species, but commercial coffee production is dominated by just two.

F1 hybrids cross genetically distant parents for 30–50% yield gains and disease resistance. Each generation needs new seed; farmers cannot save or replant.

An Ethiopian landrace from Gesha that reached Panama via Tanzania. Its jasmine intensity and 2004 Best of Panama win defined specialty’s price ceiling.

A Typica selection adapted in Indonesia, reintroduced via USDA germplasm. Low yields limit scale; its spice-and-brown-sugar cup sustains a durable niche.

Identified in Karnataka around 1911, Kent was the first arabica bred for rust resistance. Its genetics persist in S795, still grown in India and Indonesia.

A Bourbon mutation with half arabica’s caffeine and near-zero bitterness. Under 50 metric tons per year makes it specialty’s rarest low-caffeine arabica.

A Typica gigantism mutation from Bahia in the 1870s, producing screen 19–20 ‘elephant’ beans. Its greatest legacy is as the large-bean parent of Pacamara.

Marsellesa is a Sarchimor; Starmaya is an F1 hybrid using male sterility. Both score 82–86 SCA, defining current rust-resistant specialty quality.

Mokka is a pre-Typica Yemeni landrace with small, round beans and a 20–30% peaberry rate. Blueberry and wine-like intensity define its cup.

Mundo Novo is a natural Bourbon–Typica hybrid from São Paulo and the genetic parent of Catuaí. Its chocolate-nut cup defines Brazilian commercial espresso.

Obata is a Brazilian IAC Sarchimor with multi-gene rust resistance and specialty cup scores. It matches Catuaí yields — what no earlier Sarchimor achieved.

Orange Bourbon is a rare Bourbon mutation ripening to amber with a honeyed, stone-fruit cup. Micro-lot supply concentrates in El Salvador and Brazil.

Pacamara is a Pacas × Maragogype cross with oversized beans and floral butterscotch complexity. Up to 12% of plants revert to Pacas traits per generation.

Pacas is a compact Bourbon mutation from a Salvadoran farm in 1949. Its citric acidity made it the Bourbon-lineage arabica parent in the Pacamara cross.

Parainema is an IHCAFÉ Sarchimor with combined nematode and leaf rust resistance. At altitude its jasmine-citrus cup scores into the high 80s.

Pink Bourbon is a Colombian cultivar with salmon cherries and a tropical-bergamot cup. DNA analysis still does not match expected Bourbon lineage.

Coffea canephora holds roughly 40% of global coffee with nearly double arabica's caffeine. Fine Robusta programs in Uganda and Vietnam build quality tiers.

Ruiru 11 is a 1985 Kenyan F1 hybrid combining Catimor with SL28, SL34, and Rume Sudan for resistance. Catimor genetics draw persistent cup criticism.

Sidra is a probable Bourbon–Typica hybrid from Ecuador with a citric, winey cup. Genetic identity is unconfirmed, and green prices now rival Geisha.

SL28 and SL34 are Bourbon-lineage Kenya selections from the mid-1930s. They define the blackcurrant-citrus standard that anchors premium Kenyan coffee.

SL28 is a 1930s Kenya selection producing blackcurrant acidity no other cultivar replicates. Its deep taproot enables drought tolerance beyond Kenya.

SL34 is a French Mission Bourbon from Scott Laboratories. Heavy body and grapefruit acidity at Kenya's highest altitudes define it; SL28 is dominant.

Sudan Rume is a wild arabica from South Sudan's Boma Plateau collected in 1942. Its bergamot-hibiscus cup is rare, but its genetics parent Centroamericano.

A single founding event and colonial bottlenecks left arabica less diverse than nearly any crop. That is arabica’s root fragility to rust, heat, and pests.

The Timor Hybrid is a spontaneous arabica–robusta cross from Timor-Leste around 1927. It is the sole rust resistance source in every Catimor and Sarchimor.

Java, Kona, Blue Mountain, and Maragogype are Typica descendants. Maragogype's giant beans and Blue Mountain's appellation are most commercially distinct.

Typica is a Yemeni arabica lineage that, with Bourbon, underpins most commercial arabica. Its clean cup comes with disease susceptibility and low yields.

Villa Sarchi is a compact Bourbon mutation from Costa Rica. As Sarchimor's arabica parent, its compact form spans resistant cultivars in Central America.

World Coffee Research's Variety Catalog standardizes yield, quality, resistance, and altitude data. It is the most practical tool for variety selection.

Wush Wush is an unimproved Kaffa Zone Ethiopian landrace grown at 1,800–2,200 meters. Melon, papaya, jasmine, and winey sweetness define its specialty cup.