Citrus depressa (Citrus × depressa, formerly C. pectinifera, Okinawan: シークヮーサー/シークァーサー, romanized: shiikwaasa, Japanese: ヒラミレモン, romanized: hirami remon or シークワーサー, shiikuwāsā, in English sometimes called shiikuwasha, shequasar, Taiwan tangerine, Okinawa lime, flat lemon, hirami lemon, or thin-skinned flat lemon, is a small citrus fruit often harvested and used when green, rich in flavonoids and native to East Asia.
Citrus depressa, sliced in half.
The lemon is a species of small evergreen tree in the flowering plant family Rutaceae, native to Asia, primarily Northeast India (Assam), Northern Myanmar, and China.
Lemon
Lemon seedling
Full-sized tree
Flower