hop marjoram vs Origanum dictamnus

hop marjoram and Origanum dictamnus both are nouns.

Word	Noun	Adjective	Verb	Adverb
hop marjoram	Yes	No	No	No
Origanum dictamnus	Yes	No	No	No

As nouns, hop marjoram and Origanum dictamnus are synonyms defined as:

Other synonyms of hop marjoram include cretan dittany, crete dittany, dittany of crete, winter sweet.

hop marjoram (noun)	Origanum dictamnus (noun)
dwarf aromatic shrub of Crete	dwarf aromatic shrub of Crete