Calisaya bark : A valuable kind of Peruvian bark obtained from the Cinchona Calisaya, and other closely related species.

Example:


Taxonomy
Cinchona calisaya, Cinchona, botanical, Herbal, Peruvian bark, Yellow Cinchona, alkaloid, Constituents, Rubiaceae, Powder, 2 to 1, Medicinal Action, Preparations, species, quinine, acids, bitter, Elixir.

Defination from the web:
... Calisaya yields the largest amount of this alkaloid of any of the species - often 70 to 80 per cent of the total alkaloids contained in the bark ...