There is only one species of Cryptomeria, C. japonica, and is commonly called Japanese Cedar, even though it is not a cedar. It is endemic to Japan and it is the national tree of Japan. They refer to it as Sugi.
Cryptomeria have awl-shaped 4 angled needles that are spirally arranged.
Name Derivation: Greek krypto (hidden) and meris (a part); all the flower parts are hidden
Common Name: Japanese Cedar
Cryptomeria is in the family Cupressaceae.