Citron is a thorny evergreen citrus shrub or small tree with yellow fruit. The fruit has a thick, fragrant rind that can be candied and far less juice than a lemon. Buddha’s hand, with its finger-like fruit, is a variety of citron.
Cut fruit open: citron is dominated by thick rind, while a lemon has much more juicy pulp.
Why they get mixed upBoth can have yellow, oval citrus fruit.