hortensia vs double gold

hortensia and double gold both are nouns.

Word	Noun	Adjective	Verb	Adverb
hortensia	Yes	No	No	No
double gold	Yes	No	No	No

As nouns, hortensia and double gold are synonyms defined as:

hortensia and double gold: very tall branching herb with showy much-doubled yellow flower heads

Other synonyms of hortensia include golden glow, Rudbeckia laciniata hortensia.

hortensia (noun)	double gold (noun)
deciduous shrub bearing roundheaded flower clusters opening green and aging to pink or blue	very tall branching herb with showy much-doubled yellow flower heads
very tall branching herb with showy much-doubled yellow flower heads