Redcurrant in Europe, Asia and North America, also with edible fruit. These include "Ribes spicatum" (northern Europe and northern Asia), "Ribes alpinum" (northern Europe), "R. schlechtendalii" (northeast Europe), "R. multiflorum" (southeast Europe), "R. petraeum" (southwest Europe) and "R. triste" (North America; Newfoundland to Alaska and southward in mountains). While "Ribes rubrum" and "R. nigrum" are native to northern and eastern Europe, large berried cultivars of the redcurrant were first produced in Belgium and northern France in the 17th century. In modern times, numerous cultivars have been selected; some of these have escaped gardens and can be found in the wild across
Allium nigrum to 60 cm long and 2.5 cm across. Later the leaves become reflexed. Scapes are smooth and round in cross-section, 80–100 cm tall. The scape carries a dense umbellate inflorescence with star-like flowers up to 9 mm across; tepals white with a green midevein; anthers purple or yellow. The ovaries are black-green (but flushed with red in the Levant) in anthesis, but green when younger or following anthesis. Type species of Subgenus (Section) "Melanocrommyum". Molecular evidence suggests that "A. nigrum" is a polymorphous species consisting of several infraspecific groups. Alliances: Allium nigrum alliance: "Allium nigrum" L. and "A. multibulbosum" Jacq.