Citrus fruits are usually characterized by thick outer skin and juicy pulp inside. These are typically grown in warm regions, and most of the citrus fruits in the U.S are grown in Florida and California. Citrus fruits are known to be rich in vitamin C, which is critical for a healthy immune system.
Below are some of the common citrus fruits varieties:
1. Pomelo: This tangy citrus fruit is pale green to yellow when ripe, with sweet white flesh inside and very thick skin. These are usually found in Southeast Asia, and are excellent sources of vitamin C and potassium.
2. Kumquat: These resemble oranges, but are slightly smaller and ovular. These are most commonly found in East Asia and Southeast Asia, and some of its species are also found in the U.S. These are again excellent sources of vitamin C and antioxidants, and are also rich in iron, potassium and vitamin B.
3. Key Lime: These round citrus fruits are green when picked for commercial purposes, but turn yellow when ripe. Key Limes are native to India, but are grown all over the world today. These have a strong aroma with a pungent, tart flavor, and are rich sources of vitamin C.
4. Mandarin Orange: These sweet, oblate citrus fruits closely resemble the ubiquitous oranges, and are native to China. Other varieties of the orange family include clementines and tangerines. Mandarins are excellent sources of vitamins C and A.
Many other varieties of citrus fruits like grapefruits and oranges are cultivated today as a hybrid of two or more naturally available citrus fruits.