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Dried field horsetail (Equisetum arvense), a silica-rich herb harvested as sterile green shoots and supplied in bulk for herbal tea, extract and cosmetics.
Equisetum arvense: Field horsetail is a perennial plant of the Equisetaceae family that produces neither flowers nor seeds and reproduces by spores. It is known in Türkiye as at kuyruğu otu or kırk kilit otu, and grows widely across the temperate zones of Europe, Asia and North America.
Horsetail is distinguished by its jointed stem and the whorls of thin branches that emerge from those joints. The part used commercially is not the spore-bearing shoot that appears in spring, but the sterile green shoot that develops through the summer.
It is traded as horsetail or field horsetail in English, and as at kuyruğu otu, atkuyruğu or kırk kilit otu in Turkish. Its botanical name is Equisetum arvense, which is preferred in commercial correspondence to avoid confusion between species.
The plant's most distinctive feature is its high silica (silicic acid) content, which gives it a hard, abrasive texture. Historically, dried shoots were used for this reason to polish metal and wooden surfaces.
The sterile green shoots are harvested in summer once fully developed. They are dried in ventilated conditions away from direct sunlight to preserve colour, then cleaned of foreign matter, sieved and baled.
Equisetum arvense must not be confused with marsh horsetail (Equisetum palustre), which can grow in similar habitats. The two species are distinguished morphologically, and correct species identification is decisive for the commercial acceptability of the dried herb. Species control is applied during harvesting and sorting.
Horsetail has long been among the plants consumed as an infusion in Anatolian and European folk practice. The information given here refers to traditional use and makes no claim of therapeutic effect. A healthcare professional should be consulted regarding the use of herbal products.
Organicure supplies and exports dried horsetail in baled form, sourced by wild collection in the mountains of Anatolia. Please contact us regarding bulk supply, contract harvesting and regular shipment programmes for herbal tea producers, extract manufacturers and the cosmetics industry.
