Ribes name to the popular blackcurrant cordial Ribena. The genus also includes the group of ornamental plants collectively known as the flowering currants, for instance "R. sanguineum". There are restrictions on growing some "Ribes" species in some U.S. states, as they are the main alternate host for white pine blister rust. Blackfoot Indians used blackcurrant root "(Ribes hudsonianum)" for the treatment of kidney diseases and menstrual and menopausal problems. Cree Indians used the fruit of "Ribes glandulosum" as a fertility enhancer to assist women in becoming pregnant. Currants are used as food plants by the larvae of some Lepidoptera species. Ribes
Solanum nigrum from cardiac arrhythmias and respiratory failure. Livestock have also been poisoned from nitrate toxicity by grazing the leaves of "S. nigrum". All kinds of animals can be poisoned after ingesting nightshade, including cattle, sheep, poultry, and swine. However, in central Spain, the great bustard ("Otis tarda") may act as a seed disperser of European black nightshade ("Solanum nigrum"). Black nightshade is highly variable, and poisonous plant experts advise to avoid eating the berries unless they are a known edible strain. The toxin levels may also be affected by the plant's growing conditions. The toxins in "S. nigrum" are most concentrated