bachelor's button vs globe amaranth

bachelor's button and globe amaranth both are nouns.

Word	Noun	Adjective	Verb	Adverb
bachelor's button	Yes	No	No	No
globe amaranth	Yes	No	No	No

As nouns, bachelor's button and globe amaranth are synonyms defined as:

bachelor's button and globe amaranth: tropical American herb having rose to red or purple flowers that can be dried without losing color

Other synonyms of bachelor's button include Gomphrena globosa.

bachelor's button (noun)	globe amaranth (noun)
an annual Eurasian plant cultivated in North America having showy heads of blue or purple or pink or white flowers	tropical American herb having rose to red or purple flowers that can be dried without losing color
tropical American herb having rose to red or purple flowers that can be dried without losing color