plumed tussock vs Arundo richardii

plumed tussock and Arundo richardii both are nouns.

Word	Noun	Adjective	Verb	Adverb
plumed tussock	Yes	No	No	No
Arundo richardii	Yes	No	No	No

As nouns, plumed tussock and Arundo richardii are synonyms defined as:

plumed tussock and Arundo richardii: tall grass of New Zealand grown for plumelike flower heads

Other synonyms of plumed tussock include Cortaderia richardii, toe toe, toetoe.

plumed tussock (noun)	Arundo richardii (noun)
tall grass of New Zealand grown for plumelike flower heads	tall grass of New Zealand grown for plumelike flower heads