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 marshallii Ribes marshallii Ribes marshallii is a North American species of currant known by the common names Hupa gooseberry and Marshall's gooseberry. It is endemic to the Klamath Mountains of southern Oregon and northern California. "Ribes marshallii" grows in mountain coniferous forests. It is a shrub producing arching stems 1 to 2 meters (40-80 inches) long which may root at the tip when it reaches moist substrate. Nodes on the stem bear three spines each up to a centimeter (0.4 inch) long. The lightly hairy leaves are roughly three centimeters (1.2 inches) long and are divided into a few widely toothed