Fruits & Vegetables that are High in Vitamin CFruits and vegetables that contain 12 mg or more vitamin C per reference amount (20% of the Daily Valu. Sweet, succulent mangoes contain mg of vitamin C per fruit. They're also a potent source of zeaxanthan, an antioxidant that helps keep. In botany, a fruit is the seed-bearing structure in flowering plants (also known as angiosperms) formed from the ovary after flowering. Fruits are the means by which angiosperms disseminate seeds. In contrast, rhubarb is often referred to as a fruit, because it is used to make sweet desserts such as pies, though only the.