groundsel tree vs Baccharis halimifolia

groundsel tree and Baccharis halimifolia both are nouns.

Word	Noun	Adjective	Verb	Adverb
groundsel tree	Yes	No	No	No
Baccharis halimifolia	Yes	No	No	No

As nouns, groundsel tree and Baccharis halimifolia are synonyms defined as:

groundsel 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 groundsel tree include consumption weed, cotton-seed tree, groundsel bush.

groundsel 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