Agrostis palustris vs bent

Agrostis palustris and bent both are nouns.

Word	Noun	Adjective	Verb	Adverb
Agrostis palustris	Yes	No	No	No
bent	Yes	Yes	No	No

As nouns, bent is a hypernym of Agrostis palustris; that is, bent is a word with a broader meaning than Agrostis palustris:

Other hypernyms of Agrostis palustris include bent-grass, bent grass.

Agrostis palustris (noun)	bent (noun)
common pasture or lawn grass spread by long runners	a special way of doing something
	a relatively permanent inclination to react in a particular way
	an area of grassland unbounded by fences or hedges
	grass for pastures and lawns especially bowling and putting greens

Agrostis palustris (adjective)	bent (adjective)
	of metal e.g.
	fixed in your purpose
	used of the back and knees; stooped