Whiteweed n. (Bot.) A perennial composite herb (Chrysanthemum Leucanthemum) with conspicuous white rays and a yellow disk, a common weed in grass lands and pastures; called also oxeye daisy.
... cloudbergs eastward blow, From glow to gloom the hillsides shift Their plumps of orchard-trees arow, Their lakes of rye that wave and flow, Their snowy whiteweed's summer drift. 50 ... — The Complete Poetical Works of James Russell Lowell • James Lowell