Ribena pure fruit syrups for the manufacture of milkshakes had been done at the Long Ashton Agriculture and Horticulture Research Station in North Somerset using a pectinase enzyme process; Ribena was essentially invented there by Vernon Charley, a scientist at the University of Bristol in 1933. The blackcurrant variety was found to contain high levels of vitamin C. The drink was launched in 1938 under the name Ribena (from the botanical name for the blackcurrant, "Ribes nigrum"). During the Second World War, other fruits rich in vitamin C, like oranges, became almost impossible to obtain in the United Kingdom, due to
Ribes divaricatum borne on petioles. The inflorescence is a small cluster of hanging flowers, each with reflexed purple-tinted green sepals and smaller, lighter petals encircling long, protruding stamens. The fruit is a sweet-tasting berry up to a centimeter wide which is black when ripe. It is similar to "Ribes lacustre" and "Ribes lobbii", but the former has smaller, reddish to maroon flowers and the latter has reddish flowers that resemble those of fuchsias and sticky leaves. The berries are edible, and are ripe when black. The fruit was food for a number of Native American groups of the Pacific Northwest, and other