blueweed ['blu:wi:d]
n.
[植]蓝蓟
blueweed[ noun ]
a coarse prickly European weed with spikes of blue flowers; naturalized in United States
<noun.plant>
blueweed \blue"weed\ n.
a coarse prickly European weed ({Echium vulgare}) with spikes
of blue flowers; naturalized in the U. S.
Syn: blue devil, blue thistle, viper's bugloss.
[WordNet 1.5]