Agrostis canina vs brown bent

Agrostis canina and brown bent both are nouns.

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

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

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

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

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