Karlik 1 Citrus sp. Hybridní citrus
'Karlik 1' got its name from prof. F. M. Zorin and it is a hybrid of following cultivars: Unshou tangerine from the Black Sea coast C. Ieiocarpa hort. ex Tan. (most probably 'Koji'), grapefruit and kumquat originating in the Sochi region, former USSR.
It is a dwarf shrub that produces small, sour fruit with swet edible rind. It can withstand frosts of -10°C provided that it is grafted on Poncirus trifoliata. They are slightly elongated and look different than the other form known as 'Karlik 2'. According to the most ancient sources it was cultivated indoors some millenium ago.