Cudweed. Cudweed herb

Cudweed. Cudweed herb

Cudweed. Cudweed herb

Specification & Spread

Cudweed herb — herba gnaphalii uliginosi
Cudweed — gnaphalium uliginosum l.
Composite family – asteraceae (compositae)
Other names: swamp cudweed.

It is an annual herb 5-20 cm tall, usually prostrate-branched from the base.
The taproot is branchy.
The leaves are alternate, linearly oblong with a blunt tip, narrowed towards the base.
The baskets are small, arranged in tight glomeruli at the ends of the branches and are surrounded by a rosette of close leaves that exceed the inflorescences. The covers of baskets are imbricate, with dark-leafed leaves.
The flowers are tubular, small, light yellow. The fruit – small, greenish-grey, oblong achene with a tufted. All organs of the plant are woolly-felt, grey from copious pubescence.
The species is polymorphic, responsive to changes in habitat conditions.

It blooms in June – August, the fruits ripen in August – September.

Spreading. The European part of the country, Siberia, the Far East. It is most common in the forest and forest-steppe zones.

Habitat. As a weed it grows in fields, gardens and fallow lands, as well as along roads, along muddy and sandy banks of rivers, lakes, marshes, in ditches.


The chemical composition of cutweed

The main group of biologically active substances are flavonoids:

  • gnafalosides A and B,
  • 7-O-glucoside skutellyarein,
  • 6-methoxyutheoline and its 7-O-glucoside.

It also contains:

  • carotenoids (up to 55 mg%),
  • tannins,
  • some essential oil.

Harvesting and storage of raw materials

Harvesting. Cutweed is harvested in its flowering period, pulling the aerial part of the root, shake off the ground. It is advisable to harvest the raw materials at the end of the summer, when the plant is easier to find.

Security measures. It should be left for planting on each square meter of 2-4 plants. The experiments are conducted on the introduction of cilia tops culture.

Drying. It is dried in natural conditions or dryers at a temperature not higher than 40 °C. The raw materials lay out a layer of 3-5 cm. The yield of dry raw material is 25-30%.

Storage. It is stored in a dry place, packed in bags or bales.


Whole raw materials

Solid or partially shredded leafy stems up to 30 cm long with greyish-white felt pubes.
The roots are thin, pivotal, branched.
The stems are thin, cylindrical, usually prostrate-branched from the base.
The leaves are 0.5-3.5 cm long, 0.1-0.4 cm wide, alternate, short-petiolate, linear-oblong, with a blunt tip and an outstanding median vein.

The inflorescence usually consists of several egg-shaped small baskets 0.3-0.4 cm long, tightly crowded into balls at the tips of the shoots and surrounded by radiantly diverging leaves that exceed the glomeruli of the inflorescences. The basket cover consists of 2-3 rows of dark brown leaflets tiled; the outer leaflets are ovate, felt at base, naked, shiny in the upper half; the internal – oblong-ovate, acuminate, naked.

The flowers are small, yellowish, tubular, pentadent.
The fruits – achenes with a tuft of 10 individual hairs.
The colour is greenish grey. The smell is weak. The taste is salty.

Milled raw materials

The pieces of stems, leaves, inflorescences, roots, as well as individual flowers passing through a sieve with holes of 7 mm in diameter.
The colour is greenish grey. The smell is weak. The taste is salty.

Properties and application

The pharmacological properties of cutweed

Cutweed preparations have:

  • antihypertensive properties
  • expand peripheral vessels
  • slow down the heart rate.

Hypotensive effect is associated with flavonoids.
Oil extracts from the herbs stimulate:
granulation and epithelization of damaged tissues with burns and ulcers.
The curative effect of cutweed is due to the complex effect of carotenoids and other substances contained in the plant (essential oil, flavonoids, tannins).

Application of cutweed

Cutweed is used:

  • with hypertension in the form of infusion.

The best results are marked:

  • in the treatment of patients with hyperkinetic circulation.

The infusion is also used in the complex treatment of hypertensive patients taking beta-blockers,

  • to mitigate the last,
  • removal of orthostatic reactions,
  • as well as sharp fluctuations in blood pressure.

A positive selective effect of cutweed herb extract on the hemodynamics of the brain was noted, even with a small general hypotensive effect.
In case of gastric ulcer and duodenal ulcers, gastritis, the infusion of cutweed flowers is usually prescribed in combination with other plants.

Cutweed is applied with:

  • acute and chronic enteritis,
  • colitis,
  • bacterial and amoebic dysentery.

The infusion of cutweed is used in the form of therapeutic enemas with:

  • post-dysteric dysfunctions,
  • proctogenic constipation,
  • tenesmus,
  • hemorrhoids.
  • Hypersensitivity to the preparation,
  • hypotension,
  • increased blood clotting,
  • thrombophlebitis,
  • cholelithiasis,
  • pregnancy,
  • lactation,
  • age up to 18 years.