Cold hardy plant. Citrus junos Tanaka - Medium-sized, spiny, sometimes deciduous tree, spring cast is reddish, globular fruits 4.5 - 7 dia. ?
Greenish yellow skin at maturity. Flesh very acid, skin very aromatic. Cultivated in China and Japan both for the sour fruit used there instead of lemon. Also used as rootstock.
Fruit very juicy, pleasant acid but not bitter, with many seeds *