Greensboro, North Carolina: National Plant Data Team.
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. peregrinum) – Russian comfrey, healing herb, blackwort, bruisewort, wallwort, gum plant Symphytum grandiflorum – creeping comfrey.Symphytum caucasicum – Caucasian comfrey.Symphytum brachycalyx - Palestine comfrey.Symphytum asperum – prickly comfrey, rough comfrey.They are not to be confused with Andersonglossum virginianum, known as wild comfrey, another member of the borage family. × uplandicum, are used in gardening and herbal medicine. officinale, Symphytum grandiflorum, and S. Some species and hybrids, particularly S. grandiflorum.Symphytum is a genus of flowering plants in the borage family, Boraginaceae, known by the common name comfrey (pronounced / ˈ k ʌ m f r i/). 'Hidcote Blue' is sometimes sold as a cultivar of S. 'Hidcote Blue’ is not grown for herbal reasons. Bell-shaped, bluebell-like, soft blue and white flowers appear in drooping clusters (scorpiod cymes) in mid-spring to early summer. It features light green crinkled leaves (to 4” long). ‘Hidcote Blue’ is a hybrid comfrey cultivar that typically grows in a low-spreading clump to 18” tall. Genus name comes from the Greek words symphyo meaning to grow together and phyton for plant as the plant was believed to help heal wounds. It should be noted, however, that the leaves are poisonous if ingested. officinale) have been grown in medicinal herb gardens for several centuries for the purported healing properties of the leaves and roots when applied as a poultice to inflamations and wounds. Comfrey is generally a coarse hairy rhizomatous perennial that is typically grown in borders or shade gardens for its attractive foliage and Virginia bluebell-like spring flowers.
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