详细解释:n. 火烧过的土地上易于生长的草类(如柳叶菜等)
英语解释：
名词 fireweed:
tall North American perennial with creeping rootstocks and narrow leaves and spikes of pinkish-purple flowers occurring in great abundance in burned-over areas or recent clearings; an important honey plant同义词：giant willowherb, rosebay willowherb, wickup, Epilobium angustifolium