Subject name: Compositae
English name: Crofton Weed
At present, it has been included in the first batch of alien invasive species in China, ranking first.
Medicinal materials: Eupatorium adenophorum
Latin: Eupatorium adenophorum. (Original plant Eupatorium adenophorum)
Alias: Liberation Grass, Red Deer Grass, Destruction Grass, Blackhead Grass and Eupatorium adenophorum.
Textual research on names: red deer grass and destructive grass (list of seed plants in Yunnan)
Subject source: dicotyledonous plants, drugs, compositae plants
Medicinal part: Eupatorium adenophorum.
Nature and taste: pungent, bitter and cold. Into the bladder, liver and kidney.
Efficacy classification: drugs for promoting blood circulation and removing blood stasis, drugs for promoting blood circulation and regulating menstruation.
Indications: expelling wind, relieving exterior syndrome, regulating menstruation and promoting blood circulation, detoxicating and reducing swelling. It can be used for treating wind-heat common cold, febrile disease with initial fever, menoxenia, amenorrhea, metrorrhagia, innominate swelling, toxic heat ulcer and rubella pruritus.
Administration and dosage: oral: decoction, 6- 15g. External use: fresh products mash the affected area.
Distribution of resources: native to Mexico. After liberation, it was introduced to China from Myanmar, and a large number of them were born in southwest Yunnan.
Textual research on ancient books: first published in the Catalogue of Medicinal Plants in Yunnan.
Source of reference: List of Medicinal Plants in Yunnan
This part of the stem is purple and glandular pubescent. The leaves are opposite, ovate-triangular, and the edges are coarsely serrated. Head, up to 6 mm in diameter, arranged in an umbrella shape, with three or four layers of total bracts and small white flowers. The plant height is1m ~ 2.5m. Sexual or asexual reproduction. Each plant can produce about 654.38+00000 achenes every year, and these achenes spread with the wind through the crown hairs. The rhizome is developed, and it can spread rapidly by strong rhizome. Adaptable, arid, barren wasteland, even cracks and roofs can grow.
This section was first discovered in southern Yunnan on 1935, and spread from south to north along with river valleys, highways and railways. Occupy farmland and woodland, compete with crops and trees for water, fertilizer, sunshine and space, secrete allelochemicals and crowd out many neighboring plants; Blocking canals and blocking traffic; The whole plant is poisonous. To make matters worse, the seeds of Eupatorium adenophorum have many fine hairs on them. Cattle can't be digested after eating, and they will get serious stomach problems, which will become more and more unhealthy and endanger animal husbandry.
Control methods Edit this paragraph ① Biological control. Eupatorium adenophorum has obvious inhibitory effect on plant growth, and the parasitic rate in the field can reach more than 50%. ② Substitution control. It is effective to replace the control with plants such as brachypodium, red clover and Bermuda grass. ③ Chemical control. 10 a variety of herbicides, such as 2,4-di, glyphosate, diquat, dicamba, etc. It has certain control effect on the aerial parts of Eupatorium adenophorum, but it has poor control effect on its roots.
Eupatorium adenophorum is a perennial herb of Eupatorium in Compositae. The lower part of the stem is aged and hardened, semi-shrubby, with a height of 0.8-1.2m and a maximum height of 2.5m.. The stems are dark purple-brown, covered with gray rust, with opposite leaves, prismatic leaves, flower heads, five-sided achenes and crested hairs. Flowers bloom in February-March every year, and seeds mature in April-May. The seeds are small and have bristles, which can be scattered in the wind. The seed yield is huge, with an annual output of about 6.5438+0.0000 seeds per plant.
Eupatorium adenophorum originated from Mexico to Costa Rica in America. Eupatorium adenophorum was introduced into southern Yunnan from the border between China and Myanmar in the 1940s. So far, Eupatorium adenophorum is distributed in 80% of Yunnan. Distributed in Yunnan, Guizhou, Sichuan, Guangxi, Tibet and other places in the southwest, it spreads northward and eastward at a rate of about 10-30 km per year.
Eupatorium adenophorum has medicinal value. This segment of Eupatorium adenophorum can be used to treat the following common diseases, with good curative effect. The collection is as follows:
1. For itching, swelling, athlete's foot, rice field dermatitis, furuncle, etc. caused by mosquito bites, apply a proper amount of fresh leaves of Eupatorium adenophorum to the affected area, which can reduce swelling and relieve itching.
2. The skin is looking for measles, and the reason is unknown. Take 500 grams of fresh stems and leaves of Eupatorium adenophorum and wash the affected area with decoction. Generally, it can be cured in 2 ~ 4 days.
3. diminish inflammation and stop bleeding. For ordinary simple traumatic bleeding, apply a proper amount of fresh leaves of Eupatorium adenophorum to the wound, fix it with cloth, and change the dressing once a day, which can play an anti-inflammatory and hemostatic role.
Other functions edit this paragraph 1. Dyes, natural dyes, can be dyed yellow after boiling at high temperature, and can be used for ethnic tie-dyeing to repel mosquitoes and diminish inflammation.