groundsel bush vs groundsel tree

groundsel bush and groundsel tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
groundsel bush	Yes	No	No	No
groundsel tree	Yes	No	No	No

As nouns, groundsel bush and groundsel tree are synonyms defined as:

groundsel bush and groundsel tree: 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 bush include Baccharis halimifolia, consumption weed, cotton-seed tree.

groundsel bush (noun)	groundsel tree (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