green adder's mouth vs Malaxis-unifolia

green adder's mouth and Malaxis-unifolia both are nouns.

Word	Noun	Adjective	Verb	Adverb
green adder's mouth	Yes	No	No	No
Malaxis-unifolia	Yes	No	No	No

As nouns, green adder's mouth and Malaxis-unifolia are synonyms defined as:

green adder's mouth and Malaxis-unifolia: North American orchid having a solitary leaf and flowers with threadlike petals

Other synonyms of green adder's mouth include Malaxis ophioglossoides.

green adder's mouth (noun)	Malaxis-unifolia (noun)
North American orchid having a solitary leaf and flowers with threadlike petals	North American orchid having a solitary leaf and flowers with threadlike petals