Prunus spinosa Britain, and in Germany and other central European countries. Sloes can also be made into jam, chutney, and used in fruit pies. Sloes preserved in vinegar are similar in taste to Japanese "umeboshi". The juice of the fruits dyes linen a reddish colour that washes out to a durable pale blue. Blackthorn makes an excellent fire wood that burns slowly with a good heat and little smoke. The wood takes a fine polish and is used for tool handles and canes. Straight blackthorn stems have traditionally been made into walking sticks or clubs (known in Ireland as a shillelagh). In
Prunus brigantina to other "Prunus" species are not yet clear, as an initial molecular phylogeny found that various DNA sequences gave ambiguous indications, and it did not appear to belong in a clade with "Prunus armeniaca". Prunus brigantina Prunus brigantina, called Briançon apricot, marmot plum, and alpine apricot, is a wild tree species native to France and Italy. It is the only apricot-like "Prunus" species native to Europe. The fruit is similar to the commercial apricot "Prunus armeniaca", and is edible. An edible oil produced from the seed, 'huile des marmottes', is used in France. Unlike the other closely related species known