/ Dictionary / Index G groundsel tree: Meaning and Definition of Find definitions for: ground'sel tree" Pronunciation: [key] a composite shrub, Baccharis halimifolia, having dull, gray-green leaves and fruit with tufts of long, white hair, growing in salt marshes of eastern North America. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. groundsel ground shark Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language