How to distinguish a real yew sapling from a fake, and what is a fake yew

Distinguish between real and fake yew trees:

1. Eat. Azuki beans are red beans. Usually eat straight away. However, the fruit grown on yew is only ornamental and cannot be eaten directly.

2. Appearance. Yew trees appear smaller than red bean trees, and their texture is slimmer than red bean trees. The red bean tree looks like a sturdy tree.

Cardinal bean trees, evergreen or deciduous trees, up to 20 to 30 m tall and up to 1 m DBH; The bark is grayish-green and smooth. Twigs green, with fine yellowish-brown hairs when young, then smooth; The winter buds have fine brownish-yellow hairs.

yew, evergreen tree or shrub; The twigs are irregularly alternate, and there are most or a few remaining bud scales at the base, and all of them are sparsely shed; The winter buds are arranged in a tile-like pattern, and the longitudinal ridge of the back is obvious or indistinct.

3. The shape of the seeds is different.

1) Red bean seeds are almost round or oval, 1 5 1 8 cm long, 1 2 1 5 cm wide, about 5 mm thick, with a red seed coat, the umbilical cord is about 9 10 mm long, located on the upper axis of the long. 4 May, fruiting from October to November.

2) The seeds are nutty, mature in the same year, born in cup-shaped fleshy arils, sparsely on the proximal disc-shaped seed trays (i.e., bead trays that have not yet developed into fleshy arils), the umbilical cord is distinct, and when mature, the fleshy aril is red with short or few stems.

How to distinguish the real from the fake yew?

1. Smell: Generally, a little acidic taste may be true;

2. Look at the lines: there will be red irregular lines when you scrape the outer layer;

3. The real yew is colorless after soaking in water, and the dyed counterfeit will dye the water red.

Fourth, the commercially available black-hearted wood chips will become yellow and purple-red after being soaked in hot boiling water, and the characteristics of yew wood: the edge heartwood is clearly different, the sapwood is yellow-white, the heartwood is yellow-brown or purple-red-brown, and the yew growth ring is obvious.

6. Because it contains paclitaxel, it is thought that slicing stems and making tea can cure cancer, and the color of the tea is close to colorless. Many merchants would use ink trees or other open-leaf trees to dye and mix yews.

Characteristics of common yews:

The plant height of Taxus chinensis is slow in the first year of transplanting, and the growth is gradually accelerated after one year of transplanting, and the seedlings transplanted for more than 3 years can increase their height by 20-30cm per year.

Exterior features] Northeast yew is characterized by the fact that the twigs of the trees turn yellow-green or light reddish-brown in autumn. Its leaves are two-row, slightly curved and sickle-shaped, looking like a ball up close and a flower from a distance, which is extremely beautiful.

Growth Habit] Seedlings like negative, and shade management is required in the first year of transplanting.

Yew is a national first-class protected plant and is not often seen in the market. But recently, a friend bought a yew that was passed off as "Champie", and Lao Yang is here to teach everyone how to distinguish it!

The identification of the authenticity of yew saplings is not easy to say in words, as long as you look at the real thing, you will know.

It depends on what kind of variety, look at the leaves

3 allFalse yew is the "northern yew", which is not a yew at all, but a citron! It grows mainly in the humid areas of southern China, mainly in Zhejiang, Fujian, Jiangxi, Anhui, Hunan, Guizhou and other places, especially in Zhejiang.

Although the tree shape and leaf shape are somewhat similar to yew, the tree shape and leaf shape are somewhat similar to yew, but the citron does not contain paclitaxel with anti-cancer mechanism, and the absorption of toxic and harmful substances, air purification function can not be comparable with yew, and pregnant women are easy to make uterine contraction and miscarriage by mistake.

Identifying real and fake yew expert tips:

1. Look at the fruit, yew seeds are oblate-oval, oval, aril cup-shaped, the fruit period is generally from September to January of the next year, the aril is red and crystal clear when mature, and the seeds of C. chinensis are large-shaped, drupe-shaped, 2-100px long, coated by the aril, the aril is light purple-red, white powder, seed leather, light brown, and the fruit is ripe in September;

2. Smell the smell, pick a yew leaf, and smell whether there is a clear fragrance, and the citron smells with obvious pine and cypress flavor.

Yunnan yew: Yew generally refers to the yew plant in the yew family, and there are four species and one variant in China.

A few years ago, many wild yew trees suffered a catastrophe, just in order to extract the drug that can be used in the bark to extract the best cancer - paclitaxel, many big trees were skinned alive - to refine 1 kilogram of paclitaxel, it takes 15 to 30 tons of bark.

In July 2001, a local farmer spent four days peeling off the bark of a tree that had grown for thousands of years and had a diameter of 26 meters at breast height.

4. 500 yuan.

China's wild yew has been cut down and destroyed in just over a decade, and the wild stock has plummeted, and in some areas it is even endangered.