Eichhornia crassipes vs water orchid

Eichhornia crassipes and water orchid both are nouns.

Word	Noun	Adjective	Verb	Adverb
Eichhornia crassipes	Yes	No	No	No
water orchid	Yes	No	No	No

As nouns, Eichhornia crassipes and water orchid are synonyms defined as:

Eichhornia crassipes and water orchid: a tropical floating aquatic plant having spikes of large blue flowers; troublesome in clogging waterways especially in southern United States

Other synonyms of Eichhornia crassipes include Eichhornia spesiosa, water hyacinth.

Eichhornia crassipes (noun)	water orchid (noun)
a tropical floating aquatic plant having spikes of large blue flowers; troublesome in clogging waterways especially in southern United States	a tropical floating aquatic plant having spikes of large blue flowers; troublesome in clogging waterways especially in southern United States