Thistle is a perennial plant of the Asteraceae family. The roots are straight and have a diameter of up to 0.5 cm. The stem is upright, 40-100 cm tall, branches above the upper or middle part, all stems and branches are covered with long hairs.

Category：science

2025-02-18

Thistle is a perennial plant of the genus Asteraceae . The roots are straight and have a diameter of up to 0.5 cm. The stem is upright, 40-100 cm tall, branches above the upper or middle part, all stems and branches are covered with long hairs.

green thistle

green thistle The lower stem and leaves are oblong or long-lanceolate or wide-linear, with feathered shallow, semi-fisted or deep-fisted; 3-4 pairs of side lobes, middle part The side lobes are large, and there are 2-3 different-large piercing teeth on the edges of all side lobes, and there are needles on the top and edges of the tooth; the leaves from the middle are often not cracked, and there are needles on the edges or teeth with needles on the edges. ; The uppermost leaf edge needles are usually concentrated at the base or lower part of the leaf. Or all leaves are not cracked, oblong, oblong, lanceolate or linear, with needle-punched or needle-punched tooth marks at the edges. All leaves are green on both sides and have a hard texture. The base of the base and lower stems gradually grow or have a short stalk, and the middle and upper stems and leaves have no sessue or the base is enlarged.

green thistle

green thistle

green thistle head inflorescence a few are arranged irregularly at the top of the stem branches umbrella inflorescence , few head inflorescences are single stem ends, and the plant has only 1 Inflorescences in the head. Total bract ovoid, 2 cm in diameter. The total bracts are about 7 layers, arranged in a tile-like manner, gradually growing towards the inner layer, long triangle to lanceolate, sharp or short tip at the top to become needle-punch; long lanceolate in the inner layer and inner layer It is linearly lanceolate, with apical membranous enlarged and red. All bracts are hairless or almost hairless. The small flowers are purple-red, the crown is 2.4 cm long, and the eaves are 1.2 cm long, and they are not as good as 5 shallow cracks. lemish wedge-shaped obovate, flattened, apical truncated. Flower and fruit period is from June to October.

green thistle

green thistle grows in the grass on the hillside at an altitude of 100-1600 meters. It is distributed in my country. Sichuan and other provinces.

green thistle

If there are any errors in this article, please point them out.

science Latest News

Recently, when the bird monitoring team of Luokeng Crocodile Lizard National Nature Reserve in Qujiang District, Shaoguan and researchers from the South China Institute of Endangered Essences were conducting bird monitoring in autumn and winter, they found a "wild duck" in an aba - DayDayNews

Modern Express News On October 4, Beijing time, French scientist Alan Aspe, American scientist John Francis Clauze and Austrian scientist Anton Salinger were awarded the 2022 Nobel Prize in Physics for their work in quantum information science research. - DayDayNews

The ancients once raised their glasses to invite the moon to drink, and by the way they made up many beautiful stories for the moon, probably the most famous of which was Chang'e flying to the moon. Nowadays, people are no longer satisfied with standing on the earth and watching - DayDayNews

What is unexpected is that in fact, not all the scientific and technological achievements we see now are. Many high-techs have disappeared due to accidents, and it seems like there is a mysterious force limiting the development of mankind. - DayDayNews

On October 4, 2022, the Financial Times, the New York Times, the Wall Street Journal, and Reuters have all reported that the U.S. Department of Commerce will introduce new regulations to comprehensively regulate exports and prohibit U.S. companies and non-U.S. companies that use - DayDayNews

The 2022 Nobel Prize in Physics was awarded to French scientist Alan Aspe, American scientist John Crowze and Austrian scientist Anton Cailiner, among which Professor Anton Cailiner is the doctoral supervisor of Pan Jianwei, executive vice president of the China University of Sci - DayDayNews

Despite the historical tension in relations between the United States and Russia, the confrontation has been escalated due to the recent impact of the Russian-Ukrainian conflict. However, on the International Space Station outside the Earth, astronauts from both countries said th - DayDayNews

On October 4, the National Key Laboratory of Virology of Wuhan University issued an obituary: Wu Jianguo, a virologist, professor of the School of Life Sciences of Wuhan University, doctoral supervisor, and former director of the National Key Laboratory of Virology, died at 1:07 - DayDayNews

For thousands of years, human beings have been deeply curious about the world outside the earth. In recent years, with the continuous improvement of technological level, human beings have finally entered the field of space exploration. - DayDayNews

On October 4, the Royal Swedish Academy of Sciences announced that French scientist Alan Aspe, American scientist John Crowze, and Austrian scientist Anton Salinger were awarded the 2022 Nobel Prize in Physics for their contributions to entangled photon experiments, proving viola - DayDayNews

Site article recommendation

On the last afternoon when I was preparing to return to Kaohsiung, I left my time to Eslite Bookstore. It turned out that there are so many people who like to read; it turned out that reading can be such a thing to enjoy. - DayDayNews

Cai Huiru/Taipei reports that many stationery fans are looking forward to Eslite's "Ideal Stationery" annual exhibition. It is being held in the 6th floor exhibition hall of Xinyi Eslite. Before the arrival time is 12 o'clock, a large number of long queues are waiting outside the - DayDayNews

Women who enter menopause not only have huge changes in their emotions, but also may change their behavioral habits, and they will also experience various physical discomforts, which really makes people around them not know what to do. - DayDayNews

In today's era, it seems that thinness is beautiful. Especially many girls pursue skinny beauty and try every means to maintain a perfect body shape. But as the body ages and the body's metabolism slows down, obesity seems to be more likely to occur. - DayDayNews

Recently, when the bird monitoring team of Luokeng Crocodile Lizard National Nature Reserve in Qujiang District, Shaoguan and researchers from the South China Institute of Endangered Essences were conducting bird monitoring in autumn and winter, they found a "wild duck" in an aba - DayDayNews

The first national table tennis team favors Ai Fukuhara, and the news of the new book has attracted several cute readers. The most popular Japanese table tennis actress Ai Fukuhara is the favorite of the national table tennis team. - DayDayNews

science Video

First Man in Space #history #airforce #pilot #sovi...

0:29

Yuri Gagarin Biography...

9:22

April 12, 1961: Yuri Gagarin Becomes the First Hum...

0:40

April 12 1961 - First Man in Space - Yuri Gagarin ...

0:18

YURI GAGARIN, FIRST MAN ON SPACE 1961...

0:59

Gagarin: The first man in space / How it was in re...

23:41