The two most common varieties - Cassia and Ceylon - may look similar ... Cinnamon is derived from the inner bark of trees belonging to the Cinnamomum genus. Once harvested, the bark is carefully dried ...

Dr. Leana Wen: Cinnamon is a spice that comes from the dried bark of Cinnamomum trees. The most common type of cinnamon sold in North America is Cassia cinnamon from the Cinnamomum aromaticum ...