The analogy is the most common rhetorical word-making method used in plant naming. It is a kind of when a part of the whole of an object has a similar relationship with other things in shape, texture, smell, texture, function, etc. The method of selecting words representing similar things to participate in word-formation. According to the above definitions, Which of the following plant names are used, and those without analogy are:. ["The most precious mushroom is called a monkey's head. This mushroom is round and has no roots. The mud-yellow surface is like a monkey's head with silky hair, so it is named.", 'Generations of flowers, Gusu famous products, yellow when it is ripe, if not picked, it will not rot after five years, the skin color changes from blue to yellow and then turns from yellow to green.', 'According to "Compendium of Materia Medica-Fruit Department-Coconut", it is recorded that the coconut fruit is round and has dark brown hair on it. People liken it to the human skull and named it "Vietnamese King".', 'Liquorice can reconcile many medicines, so it is also known as "Guo Lao". "Guo Lao" was originally an important minister of the country.']