This term often causes confusion because it is used in the relevant literature different and often wrong. According to "Duden" is a variety (lat. Varietas, dt. Abart or sport, sometimes also race) within a biological classification a slightly different form of a species (lat. Species). In the "Roche Encyclopaedia Medicine", a variety is one of the subspecies subordinate variety, sometimes also referred to as a type . A variant (modification, variety, type, English variant) means a deviation from the comparison or standard type or norm (slightly changed form of something). This term is not used in connection with the botanical order. In general parlance, however, little distinction is made between the two terms variety and variant.