Leptandra virginica (Scrophulariaceae)
Appearance
In mid-Summer blackroot sports compact lengthy and attractive spikes of white flowers above long sharp leaved stems which reach from 1.5 to 2 meters in length. Apart from their classification as herb garden plants they make a charming backdrop to a well drained semi shaded area of the garden. The dark brown rhizomes which are harvested for their essential oils can be found just below the ground running parallel to the surface.
History
Native American shamans knew these herb garden plants well and collected blackroot for clearing bile and aiding digestion. Originally found growing wild in the warmer regions of North America at higher altitudes, it was dubbed Culver's Root by the early settlers.
Blackroot is not common on the continent, but can be found with a bit of effort and is easily grown in temperate regions or greenhouses.
Usage
Be warned that the virtues of the fresh root and its dried counterpart stand in juxtaposition to one another.
Whilst the fresh root is employed as an emetic, the dried roots are stored and used in the treatment of gastric enteritis and dysentry. As with conventional medicine, it is best to consult a genuine herbalist prior to embarking on a course of herbal treatment.
Cultivation
Propagation in blackroot as herb garden plants is achieved rather easily by dividing their rhizomes by hand in early spring and thereafter placing them in a bed of rich organic material which is well drained and applying a shallow layer of soil. Divide the resultant groups every 3 to 4 years for best results.
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