Cucumber is green, why is it called "yellow" melon?

Cucumber (Cucumis sativus L.), an annual creeping or climbing herb of Cucurbitaceae, was originally named Cucumber, which was brought back by Zhang Qian when he went to the Western Regions in Han Dynasty. At that time, things from foreign countries probably got this name by adding a Hu character in front of them.

Schleswig, the founder of the post-Zhao dynasty, was originally a Jiezu who entered the fortress. After he proclaimed himself emperor, he angrily called Jie a "Hu Ren" and banned the use of the word "Hu", so the cucumber was renamed cucumber.

The really mature cucumber has yellow skin and yellow seeds and poor taste. In the process of planting, people find that cucumbers are crisper and more delicious when eaten raw, so they are picked and eaten when they are immature.

Over time, people think that green cucumbers are mature cucumbers.

Extended data:

According to the distribution area and ecological characteristics of cucumber, it is divided into the following types:

South Asia type

Distributed all over South Asia. Stems and leaves are stout, easy to branch, and the fruit is large. Single fruit weight 1-5 kg, short or long cylindrical pericarp is lighter, with sparse nodules and black or white thorns. Thick skin and light taste. I like hot and humid, and I am strict with short sunshine. There are many local varieties, such as Sikkim cucumber, China Banna cucumber and Zhaotong cucumber.

South China type

Distributed in China, south of the Yangtze River and all over Japan. The stems and leaves are luxuriant, resistant to damp and heat, and short-lived, with small fruits, sparse tumors and many black thorns. The tender fruit is green, green and white, yellow and white, and the taste is light; Mature fruits are yellow-brown and reticulate. Representative varieties are Kunming Early Cucumber, Guangzhou Qing Er, Shanghai Foreign Firm, Wuhan Herring Gallbladder, Chongqing Dabai and Japanese Evergreen, Xiangmo Banbai, etc.

North China type

Distributed in the north of the Yellow River Basin in China, Korea, Japan and other places. This plant grows moderately, likes wet soil and sunny natural conditions, and is insensitive to the length of sunshine. The tender fruit is clavate, green, dense and spiny. The ripe fruit is yellow and white, and there is no net. The representative varieties are Shandong Xintai Mici, Beijing Dacigua, Tangshan Qiugua, Beijing Lufaqing and their hybrids Zhongnong 11kloc-0/,Jin Yan 1-7, Jinza1,Jinza No.2 and Lu Chun 32.

European and American type

Distributed in Europe and North America. Lush stems and leaves, cylindrical fruit, medium size, sparse tumor, Nitraria tangutorum, light taste, yellow or yellowish brown ripe fruit, there are Eastern Europe, Northern Europe, North America and other varieties.

Greenhouse cucumbers in Europe and America are distributed in Britain and Holland. Lush stems and leaves, low temperature and weak light tolerance, smooth and light green fruit surface, and fruit length above 1250px. There are British greenhouse cucumbers, Dutch greenhouse cucumbers and so on.

gherkin

Distributed in Asia, Europe and America. This plant is short and branched. Many flowers and many fruits. The representative variety is Yangzhou long-breasted cucumber.

References:

Baidu encyclopedia-cucumber