cotton-seed tree vs Baccharis halimifolia

cotton-seed tree and Baccharis halimifolia both are nouns.

Word	Noun	Adjective	Verb	Adverb
cotton-seed tree	Yes	No	No	No
Baccharis halimifolia	Yes	No	No	No

As nouns, cotton-seed tree and Baccharis halimifolia are synonyms defined as:

cotton-seed tree and Baccharis halimifolia: a shrub of salt marshes of eastern and south central North America and West Indies; fruit is surrounded with white plumelike hairy tufts

Other synonyms of cotton-seed tree include consumption weed, groundsel bush, groundsel tree.

cotton-seed tree (noun)	Baccharis halimifolia (noun)
a shrub of salt marshes of eastern and south central North America and West Indies; fruit is surrounded with white plumelike hairy tufts	a shrub of salt marshes of eastern and south central North America and West Indies; fruit is surrounded with white plumelike hairy tufts