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24 Sep
Posted By: Anastasiya Times Read: 1059

COMMON NAME: Polapola, Mountain Knotgrass

LATIN NAME: Aerva Lanata

HINDI NAME: Chaya, Paashanbheda


HABITAT: The birthplace of Aerva Lanata is India, but it is also widespread in many other countries, including Africa, Saudi Arabia, Indonesia, Papua New Guinea and Australia. Since 1977, from the seeds imported from Ceylon, Polapola has been grown in the humid subtropics of Georgia as an annual plant.


Polapola or Mountain Knotgrass (lat.Aerva Lanata (L.)) is a species of the genus Aerva, belongs to the Amarantaceae family. Plants of this genus are common in temperate zones of the Eastern Hemisphere, tropics and subtropics.

Aerva Lanata is a perennial, biennial or annual (in culture) herbaceous plant up to 140 cm in height, with a weakly branched rod root system of gray-white color. Both up straight and creeping forms of the stems are noted. The root can reach 18 cm in length and up to 7 mm in diameter. The stem is highly branched, pubescent and grayish-green in color. Mountain Knotgrass has white spongy stem core. The leaves are alternate, short-leaved, ovate or elliptical and pubescent. The flowers are small, white, inconspicuous, and slightly bell-shaped with a simple membranous whitish-green perianth, collected in a spike-shaped inflorescence. The fruit is a single-seeded box from green to brown in color. Seeds are bean-shaped, black, shiny, very small (about 1 mm). It blooms from June-July until frost, bears fruit from mid-summer.

CHEMICAL COMPOSITION: Mountain Knotgrass contains indole alkaloids, feruloylamides, phenolic acids, flavonoids (acylglycosides, tyriloside trinositene, tumeroside, tumerin derivatives of lupeol and oleanic acid), sterols, macro- and microelements (chromium, potassium) and other biologically active substances.

ACTIONS: The plant has antilithic, anthelmintic, antidiarrheal, antiHIV, demulcent, digestive, diuretic, lithotriptic, memory enhancer, tonic effects on the body.


  • Aerva Lanata is used for inflammatory diseases of the urinary system (pyelonephritis, cystitis, urethritis), as well as for violations of electrolyte metabolism in the body (gout, polyarthritis, spondylosis).
  • Mountain Knotgrass has useful properties for the treatment of gynecological diseases. It is used for tumors of the ovaries and uterus, inflammation of the appendages, menstrual disorders.
  • Polapola relieves edemas of any origin, eliminates constipation and fluid stagnation. The chemical composition of the plant additionally guarantees the purification of the respiratory tract from mucus and toxins, and the body - from toxins and radionuclides.
  • Aerva Lanata normalizes metabolism, blood pressure, the work of the gastrointestinal tract. The herb is able to reduce blood coagulation and strengthen the heart muscle.
  • It also restores the normal balance of potassium ions and prevents the formation of blood clots. It has a hypoazotemic and salt-eliminating effect, calms the nervous system, and gives a laxative effect.
  • Mountain Knotgrass is successfully used to treat stomach ulcers, pancreatitis, and helps to get rid of polyps in the intestine.


People who suffer from osteoporosis and who have diseases of the musculoskeletal system should not take Mountain Knotgrass. This is because Mountain Knotgrass promotes the leaching of calcium from the body.

Pregnant women should also avoid using this herb for the same reason; otherwise, there is a high probability of having a baby with pathologies of the bone and nervous system.

Do not use Aerva Lanata if you suffer from decreased thyroid function.

Individual intolerance to any components is another contraindication for using this plant.


The scientific name comes from lat. lanatus, lana - wool, thus reflecting the significant pubescence of all parts of the plant.

It differs from other diuretic medicinal herbs, as its use does not lead to a sharp dehydration of the body and with its help, uric acid, urea and sand is excreted.

In its homeland, Aerva Lanata is a cure for many diseases. On the Malabar Coast, its root is used for coughing, as a sedative and anthelmintic for children.

Science checked these data and concluded that the antiparasitic activity of the plant is higher than that of modern drugs.

It was also stated that Polapola kills pathogenic bacteria and fungi, stops the vital activity of Staphylococcus aureus, Escherichia coli and dysentery bacillus. Therefore, in Rajasthan, it is used for the treatment of typhoid fever, pneumonia, and fever.

*Be sure to follow relevant directions on product labels and consult with your pharmacist or physician or other healthcare professional before using.



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