Irish Lumper

It has been identified as the variety of potato whose widespread cultivation throughout Ireland, prior to the 1840s, is implicated in the Irish Great Famine in which an estimated 1 million died.

It was described by Andrews (1835) as a 'coarse species' and was recommended by Howden (1837) as stock feed due to its enormous yield.

"[2] In the 1840s, infestations of Phytophthora infestans devastated a series of potato harvests, leading to widespread famine and emigration.

After almost disappearing from cultivation, the 'Irish Lumper' was regrown, starting in 2008, by Michael McKillop of County Antrim for harvest sale as an heirloom variety.

Its texture upon boiling is described as more "waxy" than "floury", indicating a starch content on the lower side of that typical for white potatoes.