Sevenbark root is a plant part with a long history of use in various traditional practices. This underground portion of the plant has garnered interest for its historical role in different cultural contexts.
Understanding Sevenbark’s Botanical Identity
Sevenbark root comes from the plant scientifically known as Hydrangea arborescens, often referred to as smooth hydrangea or wild hydrangea. This deciduous shrub typically reaches heights of up to 7 feet (approximately 2 meters) and is native to the eastern United States, commonly found in moist or rocky wooded areas, ravines, and streambanks. The plant’s stem bark has a notable tendency to peel off in several thin layers, each displaying a different color, which is believed to be the origin of its common name, “sevenbark.” The roots themselves are typically grayish, possessing little odor but a sweet and pungent taste. When fresh, the roots are succulent and easily cut, becoming tough and resistant once dried.
Historical and Traditional Applications
Historically, sevenbark root held significance in the traditional practices of various indigenous groups, including the Cherokee. These groups, and later early settlers, traditionally used the root for kidney and bladder concerns, such as stones.
Beyond these specific applications, sevenbark root was also traditionally considered to have diuretic properties, meaning it was believed to increase urine output. Some traditional accounts suggest its use for conditions such as cystitis, nephritis, and enlarged prostate.
Exploring Potential Properties
Sevenbark root contains various chemical constituents that may contribute to its traditional applications. Among these are flavonoids like kaempferol, quercetin, and rutin, as well as saponins, resin, and the glycoside hydrangin. Tannins, which are polyphenolic compounds, are also present and may offer astringent properties. Hydrangin, a glucoside found in the root, is thought to contribute to its diuretic effects.
While traditional uses suggest a range of actions, current human clinical studies on sevenbark root are limited.
Preparing and Using Sevenbark
Sevenbark root is typically prepared in several forms for use, including decoctions, tinctures, and dried root for teas. For a decoction, the dried root might be simmered in water. When preparing the dried root, it is often recommended to cut it into short sections before drying due to its toughness once dry.
Liquid extracts and tinctures are also available forms, often prepared with alcohol or glycerin as a base. General guidance for tinctures suggests doses ranging from 1 to 3 dropperfuls, taken multiple times daily. For teas, soaking about one teaspoon of dried root in water overnight, then boiling and simmering the mixture, is a typical preparation. It is generally advised that specific dosages and applications should be determined with professional advice.
Essential Safety Considerations
Using sevenbark root requires careful consideration of safety. Side effects reported include nausea, vomiting, diarrhea, dizziness, and chest tightness. In some cases, allergic reactions like skin rashes or hives may occur. Consuming more than 2 grams of dried hydrangea rhizome or root at one time is considered potentially unsafe.
The plant contains cyanogenic glycosides, such as hydrangin, which can release small amounts of hydrogen cyanide when metabolized, potentially contributing to toxicity. Contact dermatitis has also been associated with the plant. There is insufficient reliable information regarding the safety of sevenbark root for pregnant or breastfeeding individuals, and its use should be avoided in these cases. Individuals taking lithium should exercise caution, as sevenbark root’s diuretic effects might affect lithium levels in the body. Consulting with a healthcare professional before using sevenbark root is advisable, especially if other medications are being taken or if underlying health conditions exist.