Blackcurrant material from the gooseberry ("Ribes grossularia"), the red currant ("Ribes rubrum") and the flowering currant ("Ribes sanguineum"). The resulting offspring were further back-crossed to "R. nigrum". Cultivars produced include 'Tisel' and 'Tiben' in 2000 and 'Ores', 'Ruben' and 'Tines' in 2005. Further cultivars 'Polares' and 'Tihope' are being tested. Since 1991, New Zealand has become an important centre for research and development, as its temperate climate is particularly suitable for cultivation of the crop. Breeding programmes are concentrating on yield, large fruit size, consistency of cropping and upright habit. In North America, there is a need for this fruit to
Ribes malvaceum and about twice as long as it is wide. The sepals are pink-purple in color and are 4–6 mm. Petals are 2–3 mm and can range in color from pink shades to white. The flower also contains two fused styles which are fused to the tip and have a hairy base. Striking glaucous purple berries are produced. The (6–7 mm fruit is glandular and covered by white hairs. There are several varieties of "R. malvaceum": "Ribes malvaceum" is cultivated as an ornamental plant by specialty plant nurseries. It is used in traditional gardens, native plant landscapes, and as bird food