lesser galangal vs Alpinia officinalis

lesser galangal and Alpinia officinalis both are nouns.

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

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

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

Other synonyms of lesser galangal include Alpinia officinarum.

lesser galangal (noun)	Alpinia officinalis (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