Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow . Baccharis halimifolia, groundsel bush or salt myrtle, is native to the coastal areas of all states bordering the Atlantic and was apparently once found only near the coast. With impressive salt resistance, ability to thrive in dry or moist soils, and massive seed production it has since expanded its range dramatically. It colonizes disturbed areas, so railroad cuts, roadsides, overgrazed pastures and retention ponds