What's the difference between a sweet orange and a citrus?

Every autumn and winter, fruits from all over the world gather in the market, which is really rich! Oranges, bananas and grapefruit in the south, apples, pears and persimmons in the north ... are all unique, sweet and delicious, making people stop to choose. Take oranges for example, it is dazzling enough to look at: what Huangyan jujube orange, Nanfeng tangerine, Sichuan Jincheng orange, Guangdong Xinhui orange, banana orange, snow orange, citrus and so on. Why are all oranges, but some are called oranges, some are called oranges, and some are called oranges? How to distinguish them?

It turns out that these good names of oranges are not given by people at will. They are all named by botanists and fruit scientists according to the science of plant genetic relationship. Citrus has many sisters. In addition to the above, lemon and grapefruit also belong to this genus, but they are easier to distinguish than citrus.

In fact, when we eat oranges, if we pay a little attention, oranges, oranges are not indistinguishable.

Some skins in oranges are wide and loose, and they peel off easily. Some skins are shiny, and the capsules are tightly wrapped and difficult to peel off. An orange that is not easy to peel is an orange. Oranges are divided into sweet and sour. The sour one is called lime, so you can't eat it. Make more rootstocks. Sweet orange, also known as sweet orange, has excellent flavor and is the top grade of oranges, such as navel orange, Xinhui orange and Jincheng orange. Another obvious feature of oranges is that the seeds are large and the embryos in the seeds are white. Compared with the shape of fruit trees, sweet oranges have larger leaves and wings at the base, but oranges and oranges generally do not have this feature.

Oranges with wide skin and easy peeling are also called wide-skinned oranges. Widely cultivated in China. They have thin skins and large capsules, which can be broken one by one, but it is difficult to separate the capsules of sweet oranges. After the peel of oranges and oranges is removed, green embryos can be seen.

Oranges and oranges are easily confused. Because they all belong to broad-skinned citrus, their characteristics are similar to each other. Although their skins are easy to peel, oranges are a little more difficult. Oranges are extremely easy. The sponge layer of orange peel is also thicker than that of orange. Satsuma mandarin and banana orange are oranges, jujube orange, Fushu orange and Nanfeng orange are oranges.

However, due to the different names used by people in different places, sometimes the names are confused. For example, Wenzhou mandarin orange, some places are called seedless orange; Jincheng, Sichuan, has a long and round causal shape, which is also called goose egg orange locally. In this way, the confusion of orange names leads to the ambiguity of people's concepts.