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 in the unripe green berries, and immature fruit should be treated as toxic. Most cases of suspected poisoning are due to consumption of leaves or unripe fruit. There are ethnobotanical accounts of "S. nigrum" leaves and shoots being boiled as a vegetable with the cooking water being discarded and replaced several times to remove toxins. Some of the uses ascribed to "S. nigrum" in literature may actually apply to other black nightshade species within the same species complex, and proper species identification is essential for food and medicinal uses (See "Taxonomy" section). "S. nigrum" has been widely used as a