Scirpus acutus vs hardstem bulrush

Scirpus acutus and hardstem bulrush both are nouns.

Word	Noun	Adjective	Verb	Adverb
Scirpus acutus	Yes	No	No	No
hardstem bulrush	Yes	No	No	No

As nouns, Scirpus acutus and hardstem bulrush are synonyms defined as:

Scirpus acutus and hardstem bulrush: widely distributed North American sedge having rigid olive green stems

Other synonyms of Scirpus acutus include hardstemmed bulrush.

Scirpus acutus (noun)	hardstem bulrush (noun)
widely distributed North American sedge having rigid olive green stems	widely distributed North American sedge having rigid olive green stems