calamus vs calamus oil

calamus and calamus oil both are nouns.

Word	Noun	Adjective	Verb	Adverb
calamus	Yes	No	No	No
calamus oil	Yes	No	No	No

calamus (noun)	calamus oil (noun)
the hollow spine of a feather	carcinogenic oil from calamus root used as a perfume
any tropical Asian palm of the genus Calamus; light tough stems are a source of rattan canes
perennial marsh plant having swordlike leaves and aromatic roots
the aromatic root of the sweet flag used medicinally