Actinidia five small petals. Most of the species are dioecious with separate male and female plants, but some are monoecious. The fruit is a large berry containing numerous small seeds; in most species, the fruit is edible. In particular, this genus is known for the species "Actinidia deliciosa", the kiwifruit or Chinese gooseberry, and for the hardy ornamental "A. kolomikta". "Actinidia" macrofossils have been recovered from the late Zanclean stage of Pliocene sites in Pocapaglia, Italy. The 40–60 species of "Actinidia" include: Kiwifruit is a cultivar group of "A. deliciosa", and hardy kiwi is the species "Actinidia arguta", which has small
Kiwifruit of fruit, one male vine for every three to eight female vines is required. Other varieties can self pollinate, but they produce a greater and more reliable yield when pollinated by male kiwifruit vines. Kiwifruit is notoriously difficult to pollinate, because the flowers are not very attractive to the honeybees that farmers generically attempt to hire. This is, in part, because the flowers do not produce nectar. Honeybees are very inefficient pollinators in general, because they visit all species of flower indiscriminately, therefore the pollen needed for one plant is diluted. With Kiwi flowers it's worse, because the bees quickly