The difference between autumn unicorn grass and Canadian goldenrod They are different plants??? Solv

It is understood that the autumn goldenrod grass (also known as: Canadian goldenrod, yellow cornflower, autumn unicorn grass, happy grass, typhoon grass, tall stem branch yellow, goldenrod starry sky, etc.) is a goldenrod of the Asteraceae family, native to North America, belongs to perennial plants, can be cultivated outdoors or greenhouses, the plant height is about 120 cm, the leaves are spear-pointed, the edges are slightly jagged, and the flower shape is a golden yellow flower. The unicorn grass has been improved, and the flowering period has been year-round, but.

July and August are still the main flowering periods. It has a strong reproductive ability and the ability to quickly occupy space, reproduces by seeds and rhizomes, grows rapidly, and can invade and destroy hillside shrubs and wetland ecosystems; It can also interbreed with species of the same genus and species of different genera, leading to genetic erosion of native species. Some places in China have been introduced as ornamental plants, which have led to the extinction of more than 30 native plant species after the spread in Shanghai, seriously affecting the original vegetation and destroying biodiversity, and is known as the "ecological killer".

At present, the State Forestry Administration has listed Goldenrod canadensis as an important agricultural and forestry pest in China. According to expert risk assessment, Goldenrod canadensis is a moderately dangerous forestry quarantine pest.

As a non-professional who is not a plant professional, I went through a lot of ** and descriptions, and after comparison, I found that these two plants have a high degree of similarity, and I personally feel that they are actually a plant.

Answer: Overview of Autumn Kirin Grass Tea There are more than 80 varieties of autumn unicorn grass that can be found in the United States, and several of them can be used to make good tea; It has a fragrant smell, wonderful flowers, and is also a good ornamental plant. The Indians used the autumn unicorn grass for many ailments, such as sore throat, chest pain, and fever; Early whites in the United States also believed it to have diuretic properties. Autumn unicorn herbal tea curative diuretic.

Cure sore throat. Autumn Kirin Herbal Tea Brewing Method Use 1 teaspoon of dried or 3 teaspoons of fresh flower leaves, brew with 1 cup of boiling water, soak for at least 10 minutes, then strain and drink, the taste is fragrant and luscious, a bit like fennel.

No poison.

However, the rhizome is developed, the fecundity is extremely strong, the propagation speed is fast, the growth advantage is obvious, the ecological adaptability is broad, and the surrounding plants compete for sunlight and fertilizer until other plants die, thus posing a serious threat to biodiversity.

It can be said that the yellow flower does not grow an inch of grass everywhere, so it is called the ecological killer and the overlord flower.

Goldenrod.

Scientific name: Solidago Decurens Lour

English name: Common Goldenrod

Goldenrod "in the 30s of the last century as an ornamental plant introduced into China, because of its strong reproductive ability, at present in China's Jiangsu, Zhejiang, Shanghai, Guangdong and other provinces and cities have expanded rapidly, occupy a large area of railways, highways and waterways on both sides and embankments, slopes, abandoned land, etc., some areas have encroached on nurseries, orchards, forest farms and other cash crop planting areas, serious harm. Here, the municipal plant protection and plant inspection department introduced the hazards and prevention measures of "goldenrod" to the masses to improve everyone's awareness of prevention.

Hazards: 1. Harm to plants. In the process of growth, it volatilizes a terpenoid compound, which can inhibit the growth of other plants around it, which can cause the extinction of local indigenous plants and destroy the ecological balance.

The second is the harm to human health. The corolla of "goldenrod" is particularly large during the blooming period, so it produces a lot of pollen, which can easily lead to pollen allergies in some people. At the same time, it can also cause respiratory infections.

Extensive management of green areas, planting green shrubs also die in patches; At the same time, it also eats away at dryland crops such as cotton, corn and soybeans, seriously affecting the yield of these crops.

A Canadian goldenrod cannot be confused with a native Chinese goldenrod. Goldenrod from Canada was introduced to China as an ornamental plant in 1935 and is an invasive alien pest.

Although the Canadian goldenrod is beautiful and beautiful, it cannot hide the harm of its existence. Goldenrod canadensis escapes into a weed after introduction, and it is a malignant weed. It is a perennial plant with developed rhizomes, strong fecundity, fast propagation speed, obvious growth advantages, broad ecological adaptability, and surrounding plants compete for sunlight and fertilizer until other plants die, thus posing a serious threat to biodiversity.

The destructiveness of Goldenrod canadensis is mainly manifested in inhibiting the growth of other plants in the invasion area, competing for sunlight and fertilizer with surrounding plants, and secreting a substance to inhibit the growth of other plants, destroying the ecosystem and causing great harm to farmland. According to Shanghai botanical experts, goldenrod in Canada has led to the extinction of more than 30 native plant species in recent decades. Therefore, the Canadian goldenrod is called an ecological killer and a tyranny.

Goldenrod canadensis Goldenrod Goldenrod canadensis.

Goldenrod canadensis belongs to the Asteraceae family taxonomically, and is a genus of Goldenrod (solidago l.).）。There are about 125 species of this genus worldwide, mainly in North America, with a few in Europe and Asia; There are 4 species in China, both in the north and the south; There are 2 species in Zhejiang, namely S. canadianensis

canadensis l., English canada goldenrop) with goldenrod (S decurrens lour.

English common goldenrop). Because the two are different species and cannot be confused, it is inaccurate to call "Canadian goldenrod" "goldenrod". It belongs to gymnosperms.

Canadian goldenrod, also known as yellow warbler, unicorn grass. This flower is bright in color, imported from Canada, and is called "happy grass" in the flower market, and is often used as a side flower in flower arrangements. Goldenrod canadensis was introduced to China as an ornamental plant in 1935.

Goldenrod canadensis is an alien organism that escapes into weeds after introduction, and is a malignant weed. Goldenrod canadensis mainly grows on river beaches, wastelands, on both sides of highways, on the edge of farmland, and around rural houses, and the plant height is 3 meters. It is a perennial plant with developed rhizomes, strong fecundity, fast propagation, obvious growth advantages, broad ecological adaptability, and competing with surrounding plants for sunlight and fertilizer until other plants die, thus posing a serious threat to biodiversity.

It can be said that the yellow flower does not grow an inch of grass everywhere, so it is called the ecological killer and the overlord flower.

Goldenrod is a native plant, which occurs in small amounts and is uncommon.

The main differences between the two are shown in the table:

The rhizome of goldenrod is very developed, three veins from the base, the front is very rough, the head inflorescence is arranged into a conical inflorescence, the head inflorescence is born on one side of the inflorescence branch, it is scorpion-tailed, and the achenes are all finely pubescent, cultivated for ornamentation (trade name: yellow warbler), malignant weed, the disadvantages are much more than the benefits, and it is the object of eradication.

The rhizome of goldenrod is not or underdeveloped, the leaf veins are pinnate, the front is smooth, the capitate inflorescence is arranged into racemes or conical inflorescences, the capitate inflorescence is not born on one side of the inflorescence branch, not scorpion-tailed, the achene is smooth, sometimes the apex is slightly pubescent, the whole herb is used as medicine, and the general weeds are the objects of routine control and utilization.

The main control methods of goldenrod in Canada are:

1 Incineration. The flower spikes are cut off, the aerial parts and tubers are pulled out, and these are burned as soon as possible to prevent the spread of seeds, rhizomes and uprooted parts.

2. Pharmaceutical prevention and control. In the seedling season and before and after flowering of goldenrod canadensis, the plant is controlled by pesticides, and the main pesticides for control are: mixed spraying with "glyphosate" and "a fire" before flowering; Use glyphosate and laundry detergent 5:

The proportion of 1 is mixed in its seedling stage for control; Other biocides can also be used for control.

3. Strengthen the management of green farmland in green areas.

Goldenrod. **Verify.

Upstairs is right, it's a goldenrod, now an invasive plant!!

In fact, it is a kind of traditional Chinese medicine, called Xiao Chai Hu, I studied Chinese medicine, this is non-toxic, clear wind and heat, antibacterial and anti-inflammatory. It is used for wind-heat, cold, headache, (wind-cold taboo) to clear heat and detoxify, reduce swelling and pain. Upper respiratory tract infection, tonsillitis, sore throat, bronchitis, pneumonia, tuberculosis and coughing up blood, acute and chronic nephritis, pediatric chancre, external treatment of bruises, snake bites, sores and ulcers, mastitis.

It's a yellow flower, and Xiao Chai Hu is not so tall. A goldenrod is an invasive species and is very difficult.

No, if it were, it would never be three or two strains but a large area!

The first type: Japanese caryophyllus, alias: Hama wheat, Latin name:

dianthus japonicus thunb.Caryophyllaceae, caryophyllus is a perennial herb with a height of 20-60 cm. The stems are erect and cylindrical.

The leaves are ovate to elliptic with thicker leaf quality. Flower clusters are capitate; apical margin toothed, claw nearly equal to sepal tube; anthers pink; The ovary is oblong. capsule longer than the calyx, apex 4-lobed; The seeds are nearly round, black, with fine spots, 2 mm in diameter.

The flowering and fruiting period is from June to September.

The second species: Goldenrod canadensis (scientific name: solidago canadensis l.).

It is a plant of the Asteraceae family of Platycodon, also known as yellow warbler and unicorn grass. Perennial herbaceous plant with long rhizomes.

The stems are erect and up to a metre in height. Leaves lanceolate or linear-lanceolate, 5-12 cm long. The inflorescences are small, 4-6 mm long, and are single-sided on the inflorescence branches, and most of the curved inflorescences branch with the single-sided capitates, forming a developing conical inflorescence.

The total bracts are linear-lanceolate, 3-4 mm long. The marginal tongue-like flowers are short.

The pink one on top is caryophyllus;

The yellow one below is called Happy Grass, and it is also called "Yellow Warbler" or "Lover's Grass", which is actually the legendary overlord flower "a branch of yellow".