Elecampane

Elecampane, also called Horse-heal (Inula helenium) or Marchalan (in Welsh), is a perennial composite plant common in many parts of Great Britain, and ranges throughout central and Southern Europe, and in Asia as far eastwards as the Himalayas.

It is a rather rigid herb, the stem of which attains a height of from 3 to 5 feet; the leaves are large and toothed, the lower ones stalked, the rest embracing the stem; the flowers are yellow, 2 inches broad, and have many rays, each three-notched at the extremity.

The root is thick, branching and mucilaginous, and has a warm, bitter taste and a camphoraceous odor. In France and Switzerland it is used in the manufacture of absinthe.

For medicinal purposes, the roots should be procured from plants not more than two or three years old. Besides inulin (C6H12O6[C6H10O5]n), a body isomeric with starch, the root contains helenin (C15H20O2), a stearoptene, which may be prepared in white acicular crystals, insoluble in water, but freely soluble in alcohol. When freed from the accompanying inula-camphor by repeated crystallization from alcohol, helenin melts at 110 °C.

source:http://www.floweradvisor.co.kr/flowers/elecampane/



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