narrow-leaved white-topped aster(n = noun.plant) - a variety of white-topped aster;
is a kind of white-topped aster

annual salt-marsh aster, aromatic aster, arrow leaved aster, aster, aster acuminatus, aster arenosus, aster cordifolius, aster divaricatus, aster dumosus, aster ericoides, aster falcatus, aster family, aster linarifolius, aster linosyris, aster macrophyllus, aster novae-angliae, aster novi-belgii, aster ptarmicoides, aster shortii, aster tripolium, aster turbinellis, azure aster, beach aster, bog aster, bushy aster, calico aster, china aster, cornflower aster, crooked-stemmed aster, eastern silvery aster, flat-topped white aster, genus aster, golden aster, goldilocks aster, grass-leaved golden aster, hairy golden aster, heart-leaved aster, heath aster, large-leaved aster, late purple aster, maryland golden aster, mojave aster, narrow-leaved bottletree, narrow-leaved everlasting pea, narrow-leaved flame flower, narrow-leaved plantain, narrow-leaved reedmace, narrow-leaved spleenwort, narrow-leaved strap fern, narrow-leaved water plantain, new england aster, new york aster, panicled aster, perennial salt marsh aster, prairie aster, prairie golden aster, purple-stemmed aster, rough-leaved aster, rush aster, schreiber's aster, sea aster, short's aster, sickleweed golden aster, small white aster, smooth aster, southern aster, starved aster, sticky aster, stiff aster, stokes' aster, tansy leaf aster, tradescant's aster, upland white aster, wavy-leaved aster, western silvery aster, white prairie aster, white wood aster, white-topped aster, whorled aster, willow aster, wood aster