Viburnum opulus. N.O. Caprifoliaceae.
Synonym ► Guelder Rose, High Cranberry, Snowball Tree. Habitat ► Cultivated in shrubberies, etc., for decorative purposes.
Features ► Very thin bark, greyish-brown outside with corky growths (lenticels), slight longitudinal crackings, laminate, light brown internally. Fracture forms flat splinters.
Part used ► Bark.
Action ► Antispasmodic, nervine.
As the name indicates, in cramp and other involuntary spasmodic muscular contractions. The decoction of 1 ounce to 1 pint of water (simmered from 1 1/2 pints) is administered in 1-2 tablespoon doses.