Difference between oranges, tangerines and rutabagas:

1. Orange is the basic species, with small flowers, good peel, and the embryo of the seed is mostly dark green.

2. Orange is the most representative of citrus fruit trees, including sweet orange and sour orange two basic species, fruit round, thicker peel, skin is not easy to peel, the seed is larger, the seed and seed embryo are all white, such as sweet orange, navel orange and so on.

3. Rutabagas are hybrids of oranges and other citrus such as sweet oranges, with large flowers, fruits peeled less well than oranges, and the embryo of the seed is light green.

Expanded Information:

Tangerine:

"Tangerine" (jú), which is commonly used in many parts of China with the same pronunciation, "桔"（jú）. "(jú) to indicate. Evergreen tree, the fruit is called "orange", juicy, sweet and sour taste edible. The seeds, leaves, and rind are used as medicine. The tree is a few meters tall, with spines on the stem. Early summer white flowers, June and July results, to November and December to ripe yellow. After peeling the skin, the inner divided into several petals, petals in the nucleus. Inside the petal sweet and fragrant, is the fruit of the noble.

Orange:

Orange originated in Southeast Asia. Orange tree is a small tree. The fruit can be peeled and freshly eaten for its pulp, which can be used as a seasoning or addition to other foods. Sweet orange varieties are the most abundant, more than 400 varieties worldwide. According to the maturity period can be divided into early, medium and late. They are generally categorized as common sweet oranges, navel oranges and blood oranges. The fruit is round, the skin is thicker and the flesh is not easy to peel off.

Rutabaga:

Rutabaga, also known as mandarin fruit. Brightly colored, sweet and sour, it is one of the most common fruits in daily life. Citrus fruit is generally larger, but smaller than grapefruit, round and slightly flat, thicker skin, convex and concave roughness, the rind is easier to peel, and most of its seeds are white. Rutabagas are large, brightly colored, with loose skin that is easy to peel, crisp flesh, and juicy slag. Oranges are the fruit of the orange tree of the genus Citrus in the family Rutaceae, also known as yellow fruit, mandarin, golden ring, willow tinsel. Orange is a citrus fruit, is a hybrid of grapefruit and tangerine. It has high edible, medicinal value.

Reference:

Baidu Encyclopedia Entry - Rutabaga