pickerelweed vs Pontederia cordata

pickerelweed and Pontederia cordata both are nouns.

Word	Noun	Adjective	Verb	Adverb
pickerelweed	Yes	No	No	No
Pontederia cordata	Yes	No	No	No

As nouns, pickerelweed and Pontederia cordata are synonyms defined as:

pickerelweed and Pontederia cordata: American plant having spikes of blue flowers and growing in shallow water of streams and ponds

Other synonyms of pickerelweed include pickerel weed, wampee.

pickerelweed (noun)	Pontederia cordata (noun)
American plant having spikes of blue flowers and growing in shallow water of streams and ponds	American plant having spikes of blue flowers and growing in shallow water of streams and ponds