Mandarines

It is a good source of vitamin C, with as much as 32% of the recommended daily allowance (26.7 mg) in 100 g.

An excerpt from the article 15 facts about mandarines
It also contains a lot of vitamin B6 (6%), B1 (5%), and B9 (4%). It is also a good source of potassium, phosphorus, calcium and magnesium.