Who knows what yew looks like? What does yew look like

Also known as yew, red cedar pine, alias beautiful yew, is the yew evergreen coniferous, cherry big peculiar red bean fruit, is the fourth century after the glacier left behind the world's rare and endangered plants, the world's natural distribution is very rare, and listed as a national first-class key protected plant, its wood is fine, the color is bright red, tough and durable, is a precious timber tree species. Especially because it contains the anti-cancer drug paclitaxel is very precious, this miracle drug is the best anti-cancer drug in the world after doxorubicin and cisplatin, is the best-selling and hottest new anti-cancer drug in the international market so far, and is also the last line of defense for advanced cancer patients, with extremely high development and utilization value. It is estimated that the world needs at least 4,800 kg of paclitaxel API every year, and the supply and demand of paclitaxel market is seriously unbalanced, and the main reason for this phenomenon is the poverty of yew (there are only about 10 million wild yew trees in the world), and more than 10,000 kg of yew branches and leaves are needed for each kilogram of paclitaxel extracted.

Yew Chinese yew is also known as yew. Taxaceae (taxaceae) evergreen shrub or tree. The scientific name is Taxus celebica.

It is widely distributed in China, and is adapted to an altitude of 900 meters (3,000 feet), with a tree height and branch spread of up to 14 meters (46 feet), and is cultivated in a shrub-like manner. The leaves are 4 cm (inch) long, wider than other yew trees, and sharp at the apex. The lower surface of the leaf has 2 wide yellow stripes, densely covered with tiny protrusions.

Beautiful cedar (yew) son Jin Guisai panda References.

The morphological characteristics of yew are as follows:

1. Yew is up to 30 meters tall and has a DBH of 65 to 100 cm;

2. The bark is grayish-brown, reddish-brown or dark brown, split into strips and falls off; Large branches develop, annual branches green or light yellow-green, turn greenish yellow or light reddish-brown in autumn, two- to three-year branches yellow-brown, light reddish-brown or gray-brown;

3. Winter buds are yellowish-brown, light brown or reddish-brown, shiny; winter bud scales rounded dorsally or with obtuse ridges; The leaves are strip-shaped, dioecious, and the seeds are oblate. It is a shallow-rooted plant, and its taproot is not obvious and the lateral roots are developed.

Yew grows very festively, its leaves are green and small, and the fruit is like bright red beans.

Yew belongs to the yew family, which is a tree plant of the yew family in the family Yewaceae, and can reach a height of 20 meters. The bark cracks and falls off in strips. The leaves are strip-shaped, spiral-shaped, arranged in two rows, slightly bent like a sickle, 2-3 cm long.

The seeds grow in cup-shaped, fleshy arils, red in color, and slightly sweet when ripe.

Simplified planting method of yew seed hail

1. Illumination

Yew seedlings within three years are shade-loving, and large seedlings need to gradually see sunlight after returning in the middle of three years, and even larger plants need to grow under full light.

2. Soil

Yew is not too strict for soil requirements, loose and fertile source pants are slightly acidic.

3. Watering

Yew is a relatively drought-tolerant plant, so it should not be watered too much during maintenance, and it should be dry rather than wet, so as to meet its basic needs.

Fourth, fertilization

Yew is not too strict on fertilizer requirements, and it can be given a thin nitrogen fertilizer for 15 to 20 days during the curing period.

5. Temperature

Yew is relatively hardy, and it can overwinter normally at a temperature of about 0 degrees.

6. Pruning

Pruning yew trees for indoor maintenance, topping of new shoots when they sprout every spring, and if left untreated, the shoots will be more slender. In general, the shape of the tree will be disordered in about two years, causing the inside or bottom to fall off, so this growing season requires moderate pruning.

Yew is a precious green tree species, its nobility is incomparable, it is the "giant panda" of the plant world, its emerald green leaves are sandwiched with fiery red fruits, noble and charming, giving people a very strong vision. Its ornamental value is also very high, and it also has a good medicinal value, it is an auspicious tree in people's hearts, and it is very popular among people.

Yew is a rare and endangered plant at the national level, and the United Nations has also banned logging. The efficacy and function of yew are mainly reflected in the medicinal value of yew, the economic value of yew, the greening value of yew, the log value of yew, and the health value of yew.

Yew, also known as yew, is a plant of the genus Yew.

Yew trees are up to 30 meters tall and have a diameter at breast height of 65-100 cm; The bark is grayish-brown, reddish-brown or dark brown, split into strips and shed; Large branches develop, annual branches green or light yellow-green, autumn greenish yellow or light reddish-brown, two- and three-year-old branches yellow-brown, light reddish-brown or gray-brown; winter buds yellowish-brown, light brown or reddish-brown with a shiny color; winter bud scales rounded dorsally or with obtuse ridges; The leaves are strip-shaped, dioecious, and the seeds are oblate. The seeds are used to extract oil and can also be used as medicine. It is a shallow-rooted plant, and its taproot is not obvious and the lateral roots are developed.

The leaves are spiral-like alternate, the base is twisted into two rows, the bar is slightly curved, 1 long, 2 wide, the leaf margin is slightly recurved, the leaf end is acute, there are 2 wide yellow-green or gray-green stomatal bands on the back of the leaf, there are fine convex spots densely growing on the midrib, the green band of the leaf margin is extremely narrow, dioecious, the male cones are solitary in the leaf axils, the ovules of the female cones are solitary at the top of the upper lateral short axis of the flower axis, and there is a disc-shaped aril at the base. The seeds are oblate-oval, with 2 ribs, the seeds are oval, the aril is cup-shaped, red.

Ladies and gentlemen, is this a yew leaf? Solution, thank you very much for the answer.

**Sellers have a lot**.

Yew is an 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.

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 many bracts arranged in a shingle-like pattern at the base, and the beads develop into fleshy, cup-shaped, red arils after fertilization.

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

Yew, also known as yew, is a plant of the genus Yew.

Yew is a shallow-rooted plant with inconspicuous taproot and well-developed lateral roots, and is a natural and rare anti-cancer plant recognized as endangered in the world.

Yew is an evergreen tree with alternate branches that turn yellow-green or light reddish-brown in autumn; winter bud scales rounded dorsally or with obtuse ridges; sickle-shaped leaves, two-rowed, centimeter long, wider than those of other yew genera, pointed and small at the ends, with two yellow interstitial lines at the base of the leaves; The flowers are axillary, dioecious, and the female flowers have only one ovule, with several scales underneath; Flat-ovate seeds with an inconspicuous ridge on each side and surrounded by a red cup-shaped aril.