Metasequoia glyptostroboides is a rare relic tree species in the world, and it is called the living fossil of China plants. 1948 was officially published internationally, which shocked the whole plant community and was hailed as an important discovery of botany in the 20th century. Metasequoia glyptostroboides spread all over Europe, Asia and North America in the Mesozoic Early Cretaceous more than 100 million years ago. But when the Quaternary Glacier arrived about 2.5-3 million years ago, huge glaciers swallowed up the ancient Metasequoia glyptostroboides, making it almost extinct on the earth. Metasequoia glyptostroboides only exists in the border areas of Sichuan, Hubei and Hunan in China because of its complex terrain and little influence from glaciers.

2. Look up at the tree in the sky

Looking up to the sky, also known as the giant tree, as the name implies, towering trees, indomitable spirit. It is shaped like a big umbrella, also called an umbrella tree. Plants are generally as high as 60 meters, some as high as 80 meters and as high as 20 stories. The trunk is slender and tall, towering and magnificent, which is different from ordinary people.

Wangtianshu belongs to Dipterocarpaceae and is a giant evergreen tree with alternate leaves. Its inflorescences are mostly racemes, usually terminal, with bisexual flowers, which are not obvious. Its fruit is an oval nut with five wings, which is enlarged by shrinking the calyx. It blooms in May and matures in September every year.

3.Davidia involucrata

(Davidiaeworkuratabailon is also called water pear, water winter fruit and pigeon tree. It is a unique relic tree species in China. Legend has it that Wang Zhaojun of the Western Han Dynasty married far away from the Great Wall and missed his hometown elders day and night (Zizi returned to the county in Hubei Province), so he wrote a letter from home every month, tied it on the foot of a pigeon and flew back to his hometown. The dove lived up to her mission and flew back to her hometown via Qian Shan, very tired. She perched on the Davidia involucrata tree and instantly turned into thousands of dove flowers with wings spread.

This is just a beautiful legend. In fact, as early as 654.38 billion years ago, Davidia involucrata was widely distributed all over the world. During the Quaternary Glacier Period, it was only preserved in some mountainous areas of Hubei, Hunan, Sichuan, Guizhou and Yunnan.

4. prickly

Alsophila spinulosa, also known as Alsophila spinulosa, belongs to Alsophila spinulosa, which is the oldest living fossil in the world and the only surviving woody fern.

The trunk of spiny tree is 3 18 meters high, and the stem is upright like a column with a diameter of about 20 cm. Petiole is dark purple with dense spines. The leaves are one or two meters long and one meter wide. They are deeply feathered three times, and their small feathers are linear and lanceolate, just like a feather umbrella. The stem can be used as medicine, named "keel wind", which has the effects of expelling wind and removing dampness and strengthening bones and muscles.

5. Camellia

Camellia japonica is a rare ornamental plant of Theaceae, which is listed as a famous flower endemic to China. From 65438 to 0960, China botanists first discovered it in Nanning, Guangxi, and became a rookie of Camelliaceae, which was unique because of its golden color.

Although there are many kinds of camellia in the world, including pink, red, purple and white, yellow is the only one lacking. The newly discovered Camellia japonica in China has golden corolla, sallow luster, glittering and translucent oil embellishment and exquisite carving, which is overwhelming. The blooming flowers are beautiful and elegant, with crowns such as pots, bowls and cups, different shapes and dazzling.