There are more than 400,000 species of plants found on the earth, of which about two thirds are grasses. These nearly 300,000 species of plants are collectively called herbs. Rice, wheat and vegetables are all herbs.

Herbs are generally short. The grass in the corner is less than two inches long, and the rice and wheat are only 1 meter above and below. But in the big family of herbs, there is also a huge "king kong" called tourist banana. This "King Kong" is the largest herb in the world, seven feet high and six or seven stories high.

Interestingly, the base of tourist banana leaves is like a spoon, which stores a lot of water. This plant is native to tropical deserts. When travelers are thirsty after drinking water, if they are lucky enough to meet them, they can drink sweet and cool water by breaking off a leaf. Therefore, people named it "tourist banana". Because it contains more water, it is also called "water tree". But in fact it is not a tree. It is the largest herb in the world.

The hometown of tourist bananas is Madagascar in Africa. It is also planted in Hainan Island, China.