Comfrey is particularly contraindicated during pregnancy and lactation, in infants, and in people with liver, kidney, or vascular diseases. In 2001, the United States Food and Drug Administration issued a ban of comfrey products marketed for internal use, and a warning label for those intended for external use. In modern herbalism, comfrey is most commonly used topically. Liver toxicity is associated with consuming this plant or its extracts. Pyrrolizidine alkaloids are responsible for comfreys production of hepatotoxicity. The tradition in different cultures and languages suggest a common belief in its usefulness for mending bones.Ĭomfrey contains mixed phytochemicals in varying amounts, including allantoin, mucilage, saponins, tannins, pyrrolizidine alkaloids, and inulin, among others. Similarly, the common French name is consoude, meaning to weld together.
Phytochemistry, folk medicine, and toxicity įolk medicine names for comfrey include knitbone, boneset, and the derivation of its Latin name Symphytum (from the Greek symphis, meaning growing together of bones, and phyton, a plant), referring to its ancient uses. Offsets can also be purchased by mail order from specialist nurseries in order to initially build up a stock of plants. The original plant will quickly recover, and each piece can be replanted with the growing points just below the soil surface, and will quickly grow into new plants. This removes the crown, which can then be split into pieces. The gardener can produce "offsets" from mature, strongly growing plants by driving a spade horizontally through the leaf clumps about 7 cm (2.8 in) below the soil surface. JSTOR ( May 2018) ( Learn how and when to remove this template message)īocking 14 is sterile, and therefore will not set seed (one of its advantages over other cultivars as it will not spread out of control) thus, it is propagated from root cuttings.Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. This section needs additional citations for verification.
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