lesser galangal vs Alpinia officinarum

lesser galangal and Alpinia officinarum both are nouns.

Word	Noun	Adjective	Verb	Adverb
lesser galangal	Yes	No	No	No
Alpinia officinarum	Yes	No	No	No

As nouns, lesser galangal and Alpinia officinarum are synonyms defined as:

lesser galangal and Alpinia officinarum: Chinese perennial with pyramidal racemes of white flowers and pungent aromatic roots used medicinally and as flavoring

Other synonyms of lesser galangal include Alpinia officinalis.

lesser galangal (noun)	Alpinia officinarum (noun)
Chinese perennial with pyramidal racemes of white flowers and pungent aromatic roots used medicinally and as flavoring	Chinese perennial with pyramidal racemes of white flowers and pungent aromatic roots used medicinally and as flavoring