hay bacillus vs grass bacillus

hay bacillus and grass bacillus both are nouns.

Word	Noun	Adjective	Verb	Adverb
hay bacillus	Yes	No	No	No
grass bacillus	Yes	No	No	No

As nouns, hay bacillus and grass bacillus are synonyms defined as:

hay bacillus and grass bacillus: a species of bacillus found in soil and decomposing organic matter; some strains produce antibiotics

Other synonyms of hay bacillus include Bacillus globigii, Bacillus subtilis.

hay bacillus (noun)	grass bacillus (noun)
a species of bacillus found in soil and decomposing organic matter; some strains produce antibiotics	a species of bacillus found in soil and decomposing organic matter; some strains produce antibiotics