Beef tartar. This is made from very finely chopped raw fillet of beef mixed with onion, gherkins (US: dill pickles) and capers and formed into the shape of a steak. A depression is made in the top into which a raw egg is broken. It is eaten raw. The meat really should not be minced (US: ground). It is thought to have originated with the fierce Tartars of the Baltic region of Russia who shredded the meat with a knife and ate it raw.
"Bitter orange." Seville orange (US: bitter orange). A variety of orange which is bitter, used for flavouring.
Bitter almonds are used in almond liqueurs and confections, although their use is illegal in North America as they contain prussic acid which is lethal unless heated.
Green russula mushroom. A type of edible mushroom that grows under birch trees.