Analogy is the most common rhetorical word making means in plant naming. It is a method that when a part or the whole of an object has similar relations with other things in terms of shape, grain, color, smell, texture and function, the words representing similar things will be selected to participate in word making when naming plants.
According to the above definition, which of the following plants is named without analogy:
DaiDaiHua, a famous product in Suzhou, is yellow when it is ripe. If it is not picked, it will not rot after five years. The skin color will change from green to yellow and from yellow to green for many years, so it is called daidaidaihua