Erechtites hieracifolia vs fireweed

Erechtites hieracifolia and fireweed both are nouns.

Word	Noun	Adjective	Verb	Adverb
Erechtites hieracifolia	Yes	No	No	No
fireweed	Yes	No	No	No

As nouns, Erechtites hieracifolia and fireweed are synonyms defined as:

Erechtites hieracifolia and fireweed: an American weedy plant with small white or greenish flowers

Erechtites hieracifolia (noun)	fireweed (noun)
an American weedy plant with small white or greenish flowers	tall North American perennial with creeping rootstocks and narrow leaves and spikes of pinkish-purple flowers occurring in great abundance in burned-over areas or recent clearings; an important honey plant
	an American weedy plant with small white or greenish flowers