Steam distilled calamus root essential oil from Nepal.  Also known as: Sweet Cinnamon, Sweet Flag, Sweet Myrtle and Sweet Root.

Species:  Acorus calamus L.  Family:  Araceae.  Class:  Ketone.

Aeracuras' calamus root essential oil from Nepal has a sweet, woody aroma.

Aromatherapy uses include:  Regulating blood pressure through dilation of spleen blood vessels, as a remedy for hangovers, perfume, and wine flavoring.

Here is an article:  Sweet Flag.