Some friends may know Pingan beans as ornaments, but few of them know where this very beautiful vermilion soybean comes from? In fact, it is the seed of a tropical vine plant called Jiulong Teng. If you have seen this plant and the fruits it produces, you will be very amazed and say: Wow! What a big peas!
This “giant pea” is produced by the Nine Dragons vine. The fruit shape looks very much like a pea, but it is much larger than a pea! The fruit of the largest Nine Dragons vine is nearly two meters in length and weighs up to five kilograms. It is known as the largest pod fruit in the world. The beans in the carob are Pinto beans. This kind of beans is also the largest in the world and is called by people. “The World’s Number One Bean”.
Jiulong vine is the longest vine plant in the world, usually more than 30 to 40 meters, and some can reach more than 50 meters. Most of it grows in the rainforests of Southeast Asia, and it is also distributed in low latitudes in China. It has many aliases. There are Guoganglong, Guojianglong, Longxuvine, etc. The Jiulongvine is a perennial vine like grape vines. It can be planted by cuttings. As long as the environment is suitable, it is easier to survive, but it is a tropical plant and requires temperature for growth. It is higher and can only survive in the wild in hot and rainy places all the year round. Therefore, it is difficult to grow this plant in other places in China except for some low-latitude provinces in the south.
The most amazing thing about the leguminous plant of Jiulongvine is its huge fruit. The fruit in the pea-like pod is as big as an egg, but the shape is mostly flat, which looks like persimmon. It is known as the “king of beans”. . The jewelry made into ornaments is usually called Pingan. In fact, it has several names, such as Longdou, Xiangdou, Luohandou, Niuyaozi, Guojiang Longzi, and Muyaozi. It is called yin-yang bean. However, this kind of beans has certain toxicity and cannot be eaten raw. If you want to use it as a food material, you need to soak in water for several hours to detoxify. However, it is also said that it has a certain detoxification function.
In Southeast Asia and other places, Pingan beans are also a common ornament. After processing, Pingan beans are mostly vermilion, and are exquisite and cute, like agate. They are often carved into hearts and circles with various patterns and texts. It can mean peace, auspiciousness, wealth, and prosperity, and it also symbolizes the loyalty of love and the prosperity of career. At the same time, it is also an offering in Buddhism in Southeast Asia. The locals also believe that it has the function of warding off evil spirits.