buffel grass, Cenchus ciliarus 水牛草
bugloss, small-flowered, Echium parviflorum 小花蓝蓟
viper's, Echium vulgare 蓝蓟
burdock, greater, Arctium lappa 牛蒡
lesser, A. minus 小牛蒡
burnet-saxifrage, Pimpinella saxifraga 虎儿草茴芹
buttercup, Ranunculus spp. 毛茛
corn, R. arvensis 田野毛茛
creeping, R. repens 匍枝毛茛
butterwort (common), Pinguicula vulgaris 捕虫堇