mandrake vs mandrake root

mandrake and mandrake root both are nouns.

Word	Noun	Adjective	Verb	Adverb
mandrake	Yes	No	No	No
mandrake root	Yes	No	No	No

As nouns, mandrake and mandrake root are synonyms defined as:

mandrake and mandrake root: the root of the mandrake plant; used medicinally or as a narcotic

mandrake (noun)	mandrake root (noun)
a plant of southern Europe and North Africa having purple flowers, yellow fruits and a forked root formerly thought to have magical powers	the root of the mandrake plant; used medicinally or as a narcotic
the root of the mandrake plant; used medicinally or as a narcotic