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Standardized: cramp bark
Other: guelder rose, high-bush cranberry
Viburnum opulus L.
Plant Family: Caprifoliaceae
Cramp bark is a large deciduous shrub growing as much as 15 feet (5 m) tall and 15 feet wide. It is native to the moist lowland forests of England and Scotland and naturalized to moist forests of the northern United States and southern Canada. The bark is stripped before the leaves change color in the fall, or before the buds open in the spring. A member of the honeysuckle family, cramp bark bears large white flowers, up to 5 inches (12 cm) across that yield red berries in the fall. The berries are eaten like cranberries, although moderation is recommended. Historically, the berries, once dried, have been used for making ink.
Dried bark, harvested in the autumn before leaves change color, or in the spring before leaves open. The leaves and fruit are used in laxatives.
Teas or tinctures. In rare instances, used as a ground herb administered in capsules. Often combined with corydalis and/or valerian.
Specific: No known precautions.
General: We recommend that you consult with a qualified healthcare practitioner before using herbal products, particularly if you are pregnant, nursing, or on any medications.
For educational purposes only. This information has not been evaluated by the Food and Drug Administration.
This information is not intended to diagnose, treat, cure, or prevent any disease.
Copyright © 2018 Mountain Rose Herbs
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