Agrostis canina vs dog bent

Agrostis canina and dog bent both are nouns.

Word	Noun	Adjective	Verb	Adverb
Agrostis canina	Yes	No	No	No
dog bent	Yes	No	No	No

As nouns, Agrostis canina and dog bent are synonyms defined as:

Agrostis canina and dog bent: common grass with slender stems and narrow leaves

Other synonyms of Agrostis canina include brown bent, Rhode Island bent, velvet bent, velvet bent grass.

Agrostis canina (noun)	dog bent (noun)
common grass with slender stems and narrow leaves	common grass with slender stems and narrow leaves