Rust-resistant (introgressed) (16)
- Anacafe 14 — The Guatemalan variety that started as a chance seedling in a farmer’s field around 1980 — a rust-resistant Catimor crossed back to Pacamara, released by ANACAFÉ in 2014, drought-tolerant, very large beans, and the rare Catimor that cups well. It is also not genetically stable, so a farmer’s own seed does not reliably give the same tree back.
- Arara — A yellow-cherried Brazilian variety released by Fundação Procafé in 2012 — rust-resistant, compact, heavily requested by Brazilian growers, and the rare introgressed hybrid that also wins cupping competitions.
- Batian — Kenya’s 2010 release — a tall, very-large-beaned composite bred from the SL trees and the Timor Hybrid, rated “Very good” in the cup, and the variety that quietly won China’s first internationally judged coffee competition.
- Castillo — The rust-resistant Colombian variety that replaced Caturra across an entire country. Bred by Cenicafé from Caturra and the Timor Hybrid, released in 2005, named after the researcher who found Colombia’s first rust-resistant variety — and not one plant but seven regional ones.
- Catimor — Not one variety but a whole family — Caturra crossed with the Arabica × Robusta Timor Hybrid to bolt rust resistance onto a productive dwarf tree. It worked, then partly stopped working, and the cup was never the point.
- Costa Rica 95 — The Catimor ICAFE bred for Costa Rica’s warmest, sourest ground — rated Low in the cup, confirmed susceptible to the rust it was built against, and then, in 2019, the variety that won a national Cup of Excellence outright in Peru.
- IAPAR 59 — Brazil’s Sarchimor — a compact, rust-resistant, medium-altitude workhorse the catalogue rates “Low” in the cup, and the variety a Brazilian farm is said to have won the 2017 Cup of Excellence with at 93.60 points.
- IHCAFE 90 — The lowland Catimor bred by IHCAFE in Honduras — high-yielding, very hungry, rated the bottom of the quality scale, susceptible to the rust it was built against, and yet a Catimor that has placed at Cup of Excellence — the only Honduran one to do so, though Costa Rica 95 outright won Peru 2019.
- IPR Alvorada — The 2024-published Paraná cultivar bred from IAPAR 59 and Mundo Novo — a compact, heavy-cropping farm tree with good-but-not-remarkable cup quality and only slight rust resistance, and no competition or auction record of any kind.
- Lempira — The Honduran workhorse — a Catimor bred by IHCAFE to survive coffee leaf rust, planted across the country by the million, and now confirmed susceptible to the very disease it was made for.
- Marsellesa — The Nicaraguan Sarchimor released in 2009 — a rust-resistant, high-yielding dwarf that cups better than the Catimors it was meant to replace, and the mother of Starmaya, the only F1 hybrid coffee you can grow from seed.
- Ruiru 11 — The compact, disease-proof Kenyan variety bred after a berry-disease epidemic wiped out half the national crop — high-yielding, hard to kill, and permanently in the shadow of the SL trees it was meant to replace.
- Sarchimor — The other rust-resistance family — Villa Sarchi crossed with the Timor Hybrid instead of Caturra. Same bargain as Catimor, but it kept more of the cup, and one of its selections keeps placing in the Cup of Excellence.
- Tabi — The Cenicafé variety bred the other way round — tall instead of dwarf, and crossed onto Bourbon and Typica rather than Caturra, so the cup came along with the rust resistance. Announced by its breeder in 2002 after a programme that began in the 1970s.
- Timor Hybrid — A coffee tree nobody bred — an accidental Arabica × Robusta cross found on the island of Timor that turned out to carry rust resistance. It is the ancestor of most disease-resistant Arabica varieties planted today.
- Variedad Colombia — Colombia’s first rust-resistant variety, released by Cenicafé in the early 1980s — and deliberately not one plant but a blend of sister lines. It carried the national crop for two decades before Castillo replaced it.