Equisetum hyemale, or winter horsetail, is a species of rhizomatous shrub belonging to the Equisetaceae family. Native to North America, Europe and Asia, it is characterized by its long cylindrical and articulated stems up to 100 cm in length..
The robust stems devoid of leaves or branches exhibit vertical growth similar to bamboo stems. The bright green bark has fine black and white stripes between the growth nodes.
It is a plant widely used in gardening to delimit spaces such as paved areas or borders, planted in narrow and elongated areas. It lacks flowers, it reproduces by spores formed from an elongated and thickened sporophyte located at the upper end of the stems..
On the other hand, it is used as a medicinal plant due to its content of silica and potassium salts, traces of alkaloids, vitamin C, resins and flavonoids. Thus, its stems are used for their diuretic, anti-hemorrhagic or anti-inflammatory effect, in creams to care for the skin or to weld bones, among other uses..
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Equisetum Hyemale it is a herbaceous perennial with long single stems 10 mm in diameter and up to 2 m in height. The vertical, erect, cylindrical, hollow, dark green stems have 15 to 50 longitudinal ridges or furrows..
Branches appear as secondary growth only when maintenance pruning or physical damage occurs. The tiny modified leaves form a toothed sheath or crown around the blackish-green stem at each joint.
The small leaves 1 cm long and wide are united forming a sheath or crown around the stem. They develop at the base of each joint and the free portion is triangular in shape, brownish or greyish in color with a black ring at the base.
Like ferns and other primitive species, horsetails lack flowers, inflorescences, fruits, or seeds. Its propagation is carried out through spores generated from sporangiophores located in terminal position in the stems.
The green spherical spores have four ribbon-shaped elaters that facilitate their dispersion when leaving the sporangia. These sporangia are grouped into a 15 mm long elliptical or oblong hexagonal sporangiophore located at the apical end of the stem..
The root system is made up of an underground stem called a rhizome, widely branched and widely spread over the surface of the land. This characteristic favors the formation of dense colonies of horsetails..
The stems of Equisetum hyemale They are made up of 15-20% mineral salts. Among which is distinguished the silicon present in 5-10% of the total weight of the plant. Other localized elements are aluminum, magnesium, manganese and potassium.
Flavonoids are abundant in the chemical composition of this species, including quercetin, herbacetin triglycopyranosides, and kaempferol. It also has apignin glucosides and luteolin that acts as an antioxidant and anti-inflammatory of certain organs of the body..
In the stems of this species it has been possible to identify the carotenoids a-carontene and b-carotene, licofil, lutein its epoxide, violaxanthin and zeaxanthin, as well as the organic acids phenolytic, caffeic and chlorogenic or the alkaloids nicotine and palustrin.
- Kingdom: Plantae.
- Division: Equisetophyta.
- Class: Equisetopsida.
- Order: Equisetales.
- Family: Equisetaceae.
- Gender: Equisetum.
- Species: Equisetum hyemale L.
The winter horsetail grows in humid environments, both in the wild and cultivated for decorative purposes. Due to its rapid growth rate, it can become an occasional weed of drainage channels or irrigation systems..
Originally from North America, it lives in conditions of dry, semi-dry and temperate climates at altitude levels between 1,000-2,600 meters above sea level. It is a species associated with aquatic ecosystems, streams in mountain mesophilic forests and pine forests.
Native to the northern hemisphere, it is widely distributed throughout the United States and Canada to the Arctic Circle region. It is also located in some temperate regions of Mexico and Central America, Mesoamerica, Europe and northeast Asia..
This species adapts to full sun exposure or semi-shady conditions, being very resistant to frost. Requires moist, but well-drained soils, with a high content of organic matter.
The winter horsetail is known for its extensive therapeutic properties, with numerous conditions and ailments that can be treated.
Whether through infusions, tinctures, capsules or ointments, this plant has anti-inflammatory, astringent, antioxidant, analgesic, purifying, diuretic, healing and remineralizing properties..
They also have cosmetic effects on skin care and strengthening of hair or nails. In this case, its high content of silicon favors the production of collagen and reactivating the constitutive tissues of the skin..
- Antianemic
- Antidiarrheal
- Anti-inflammatory
- Antifungal
- Antioxidant
- Antiseptic
- Healing
- Remineralizing
- Anemia and jaundice
- Uric acid or gout
- Arthritis and rheumatic ailments
- Dandruff, scalp conditions and hair loss
- Scars, stretch marks and marks on the skin
- Fungi on skin and nails
- Diarrhea and dysentery
- Weakness, asthenia and fatigue
- Urinary system diseases
- Bone fractures and ailments
- Internal and external bleeding
- Internal and external inflammation
- Obesity and diet
- Fluid retention and edema
- Imbalanced immune system
- Tendinitis and sprains
Horsetail has a great diuretic effect and is used successfully for fluid retention problems and enemas. Its high potassium content favors the elimination of liquids, so it is recommended to ingest a concentrated infusion 2-3 times a day.
Urinary system infections such as urethritis, cystitis, prostatitis, and even kidney stones are easy to alleviate due to their antiseptic effect. The daily intake of a refrigerated infusion promotes continuous urination, which favors the elimination of parasites that can cause infections.
Horsetail is a natural remedy that has various active ingredients that facilitate the healing of internal and external wounds. Intake in the form of an infusion or juice acts as an anti-hemorrhagic drug, being highly effective for nose or mouth bleeds..
In the case of fractures, sprains, rheumatic pain, osteoporosis or osteoarthritis, horsetails help to calm these ailments due to their silicon content. Indeed, silicon acts as a repairing principle for bones and cartilage, accelerating their recovery..
The anti-inflammatory and anti-hemorrhagic capacity of Equisetum hyemale acts as a natural remedy to reduce inflammation of hemorrhoids and stop bleeding. The ingestion of infusions or the topical application on the affected area through a clean and sterilized gauze considerably reduces hemorrhoidal inflammations..
The flavonoid content of horsetail has an antioxidant action that strengthens the immune system. This action is particularly effective during periods of physical or mental exhaustion, stressful situations, recovery from illness or postoperative periods. It is taken as an infusion.
Horsetails, as well as any other herb used as a natural remedy, is not recommended to ingest during pregnancy. Its consumption should be restricted due to the possible negative consequences, such as a possible abortifacient effect or the lack of nutritional and vitamin elements..
Horsetail is a highly recommended species for cleaning wounds and healing skin ailments such as rashes, acne, rash, redness, or itching. Adding a few drops of horsetail tincture to bath water is effective in alleviating any skin ailment.
Its diuretic effect and ability to expel toxins from the body is very effective for those who are overweight and on a diet. One or two daily intakes of a horsetail stalk concentrate for a week contributes positively to the elimination of harmful agents from the body..
The winter horsetail is a plant widely used for ornamental purposes due to its particular shape, fast growth and low maintenance. It is usually planted in pots and planters for terraces and patios, or in ponds and around waterways.
Sown on the margin or in a pond, it is convenient to plant in pots or planters, since its rhizome is very invasive. Likewise, planted at the edge of drains or water courses, it is recommended to place physical barriers underground to limit the growth of the rhizome..
The Equisetum hyemale or winter horsetail requires ample sun exposure and adapts to semi-shade, it is also tolerant to frost. They develop on any type of soil as long as it has good available moisture and efficient drainage..
As an ornamental crop, it requires frequent watering in order to keep the substrate moist unless planted in the pond. You need a medium with a good content of organic matter, being timely the application of compost during the cool months.
Maintenance or sanitation pruning is done to slow uncontrolled rhizome development or remove old and damaged stems. Horsetails are highly resistant plants to attack by pests and diseases that are only affected by drought.
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