What is the difference between wild yew and cultivated yew?

When we distinguish between them, we can first observe the place of origin, wild yew is grown in a natural environment, this yew can be moved indoors, can be artificially cultivated, but it is also a wild yew. The artificial yew is artificially planted, and the difference between the two is still relatively obvious. We can also observe the color of the trunk of the yew tree, after the wild yew peels the bark, the color of the trunk is red, while the artificial yew tree peels the bark of the trunk and the color is white, so it is also easier to distinguish.

Of course, we can also observe the form, if it is a wild yew will be more vigorous and powerful, artificial yew will appear more slender.

The age of the trees is also different, generally wild yew trees are relatively long, some may be more than 100 years old, and the shape of the tree is also very large. The age of artificial yew trees is very short, and it can only feed for more than ten years at most.

Artificially planted yew should be protected as a general tree species, and wild yew is protected in the list of national key protected plants.

The difference is mainly based on the place of origin (which can be simply understood as the place of birth), and what grows naturally in the natural environment belongs to the wild. As long as it is naturally grown, it is still wild even if it has been transplanted.

Illegal logging and destruction of wild yew trees is a criminal offense and is subject to criminal liability. The felling and destruction of artificially planted yew trees is a civil tort and should be held civilly liable.

Extended information: evergreen trees or shrubs; 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. The leaves are strip-shaped, spiral-shaped, twisted at the base and arranged in two rows, straight or sickle-shaped, growing downward, with a raised midrib above, and two pale gray, gray-green or pale yellow stomatal bands below, without resin tracts in the leaves.

dioecious, cones solitary leaf axils; Male globules round-spherical, peduncled, with bracts arranged in a shingle-like manner at the base, stamens 6-14, shield-shaped, anthers 4-9, radially arranged; The female cones are almost sessile, with most of the bracts arranged in a shingle-like arrangement at the base, the upper 2-3 pairs of bracts are crossed and opposite, the ovules are erect, and the bracts are solitary at the top of the lateral short axis in the upper part of the total flower axis, and the base is supported by a disc-shaped bead tray, and the bead tray develops into a fleshy, cup-shaped, red aril after fertilization.

The seeds are nutty-shaped, mature in the year, born in cup-shaped fleshy arils, sparsely born on near-membranous disc-shaped seed trays (i.e., beads that have not developed into fleshy arils), the seed umbilicus is obvious, and the fleshy aril is red when mature, with short peduncles or almost no stems; 2 cotyledons, unearthed at germination.

Yew can be grown in the north, and the main varieties are:

1. Northeast yew.

Taxus chinensis has the characteristics of cold resistance, shade preference, moisture preference, fertilizer preference, fear of drought, flood and high temperature, and has a wide range of adaptability to soil. During the dormant period, it can tolerate low temperatures of -42, has no frost damage, and does not lose leaves when buried by heavy snow. In summer, when the temperature exceeds 30, the growth slows down, and as the temperature continues to rise, the growth of the sail ant stops boring.

The growth is slow, the plant height is about 2m in 14 years, and the diameter of the trunk increases by 5px per year. Under good cultivation conditions, 2-year-old cuttings were planted for 5 years, and the plant height was more than 1m.

2. Mandia yew.

Mandia yew is native to the United States and Canada and is a natural hybrid. Its taproot is not obvious, the lateral roots are developed, the branches and leaves are lush, the germination force is strong, and it is resistant to low cold, and can withstand low temperatures of 25. It can be planted in most parts of our country.

The growth is fast, the annual growth is measured at 40 90cm, and the highest can be 60 70cm, which is 300 700% of the growth of domestic yew (Chinese yew, Yunnan yew, etc.). The biomass accumulation of 3 4 years is 600 800 plants, and the fresh raw materials produced at 5 years can be used to refine paclitaxel. The following year, new branches and leaves can sprout, and their biomass is larger than the harvest in the previous year.

1. Yew is suitable for shade-loving, drought-tolerant and cold-resistant places, and the soil pH value is required.

2. Habitat is shade-tolerant, can also grow under dense forests, perennial, not forested, mostly seen in coniferous and broad-leaved mixed forests dominated by Korean pine.

3. Yew is suitable for planting in northern and southern China, and has the characteristics of shade-loving, drought-tolerant and cold-resistant. The habitat is shade-tolerant, and it can also grow under dense forests, and it is perennial and does not become a forest.

4. It is mostly found in mixed coniferous and broad-leaved forests dominated by Pinus spp. It grows on rocky or barren soil on the top of a mountain, and is mostly shrub-like.

5. It likes cool and humid climate, can tolerate low temperatures below minus 30, has strong resistance to cold renting, and the optimal temperature is 20-25, which is a negative tree species. It likes moisture but is afraid of waterlogging, and is suitable for planting on loose, moist and well-drained sandy loam soil.

Henan Nanzhao found rare wild yew trees in China The reporter learned from an interview that Nanzhao found a rare national first-class wild protected plant yew tree and yew natural distribution community. Recently, after a field investigation by botanists, it was found that the "waist circumference" of the largest yew tree is particularly thick, and this kind of wild yew tree with an age of 1,000 years is rare in China. At the beginning of December this year, the relevant experts of the Municipal Wildlife Protection Station, together with experts from the Department of Biology of Nanyang Normal University, went deep into the forest area of Qiaoduan Town, Nanzhao County, to investigate the natural distribution community of yew.

They inspected and collected specimens on site, and confirmed that there was a natural distribution community of yew in the forest area, the largest of which was about two meters in diameter, and it took three people to hug each other, and the initial estimate of the age of the tree was more than 1,000 years. Centered on the wild yew tree, a dense natural community has been formed within a radius of about 500 meters, with about 300 yew saplings, young trees, and adult plants, all of which are growing well. According to plant experts, yew belongs to the phylum Gymnosperms, which is a national first-class protected wild plant with high scientific research value and medicinal value.

In fact, except for the Mandia yew genus, which tends to grow as a shrub, other species of yew show arbor characteristics, and it is necessary to overcome the nature of its apical growth advantage when planted indoors. Without certain knowledge of botany and horticulture, it is not good to cultivate.

Yew is an evergreen tree with twigs that turn yellow-green or pale reddish-brown in autumn, with striar, dioecious leaves and oblate seeds. The seeds are used to extract oil and can also be used as medicine.

Yew is suitable for planting in the north and south, with the characteristics of shade-loving, drought tolerance and cold resistance, and the soil pH value is required.