Ribes aureum where the fungus is active to prevent its spread. Ribes aureum Ribes aureum, known by the common names golden currant, clove currant, pruterberry and buffalo currant, is a species in the genus "Ribes". It is native to Canada, most of the United States (except the southeast) and northern Mexico. The variety "Ribes aureum" var. "villosum" is sometimes considered a full species, Ribes odoratum. It belongs to the subgenus "Ribes", which contains other currants, such as the blackcurrant and redcurrant ("Ribes nigrum" and "rubrum"), and is the sole member of the section "Symphocalyx". "Ribes aureum" is a small to medium-sized deciduous
Veratrum nigrum Veratrum nigrum Veratrum nigrum (common name black false hellebore) is a widespread Eurasian species of perennial flower of the family Melanthiaceae. Despite its common name, "V. nigrum" is not closely related to the true hellebores, nor does it resemble them. The plant was widely known even in ancient times. For example, Lucretius (ca. 99 BCE – ca. 55 BCE) and Pliny the Elder (23 AD – August 25, 79) both knew of its medicinal emetic as well as deadly toxic properties. "Veratrum nigrum" is native to Eurasia from France to Korea including Germany, Poland, Russia, China, and Mongolia. The plant