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 californicum pendent from the branches. The flower has five sepals in shades of deep red or green with a red tinge, which are reflexed upward. At the center is a tubular corolla of white or pinkish petals around five stamens and two longer styles. The fruit is an edible red berry about a centimeter wide which is covered in stiff spines. Ribes californicum Ribes californicum, with the common name hillside gooseberry, is a North American species of currant. It is endemic to California, where it can be found throughout many of the California Coast, Transverse, and Peninsular Ranges in local habitat