Shillelagh (club) Shillelagh (club) A shillelagh ( or ; , "thonged willow") or blackthorn stick is a wooden walking stick and club or cudgel, typically made from a stout knotty stick with a large knob at the top. It is associated with Ireland and Irish folklore. Shillelaghs are traditionally made from blackthorn (sloe) wood ("Prunus spinosa") or oak. Wood from the root was prized as it was less prone to crack or break during use. The wood would be smeared with butter or lard, and placed up a chimney to cure, giving the shillelagh its typical black shiny appearance. Another method was
Prunus simonii is particularly aromatic, much more so than "Prunus salicina", with a comparatively high level of hexyl acetate, which gives apples their aroma. Plant breeder Luther Burbank devoted a lot of work to hybridizing this species with the Japanese plum ("Prunus salicina") and developed a number of cultivars from the hybrid. Of these, the cultivar 'Climax' was particularly notable for its importance to the fruit shipping industry of California. Other influential plum cultivars that Burbank developed with "P. simonii" ancestry include 'Maynard', 'Chalco', 'Santa Rosa', and 'Formosa'. Those two species and the European species "Prunus cerasifera" have contributed the majority of