1. Bread tree: In the plant kingdom, many tree species have been given various common names because of their special shapes or growth habits. For example, there is a plant called baobab, also known as baobab or acerola. Baobab trees are mainly distributed in tropical and subtropical regions of Africa, and their fruits are used as food by local people. The fruits of these trees are similar to bread in size and shape, which is why they are called "bread trees". However, this name is not a formal name of plant taxonomy.
2. Elephant Leg Tree: In some areas, people may call some plants elephant leg trees. For example, a Moringa tree that grows in India is called the elephant leg tree. However, this name is not a formal classification name of plants, nor is it a widely recognized generic name of plants.
3. Bottle tree: In some places, people call all trees with swollen trunks bottle trees. However, this name is not a formal classification name of plants, nor is it a widely recognized generic name of plants. The morphological characteristics of bottle trees may vary from species to species, but they usually have swollen trunks or rhizomes.
In a word, these common names are not formal plant classification names, and they may be based on plant morphological characteristics, growth habits or local traditional habits. To learn more about these commonly known corresponding plants, it is suggested to consult relevant plant classification materials or consult botanists.