When marsh tea is abloom , air is permeated with stupefying odor of this medical and poisonous plant .
当沼泽茶叶绽开,空气中充满了很多药草和有毒植物的气味。
When the rains come in april and the bedunge turns to marsh and then glutinous mud , sending up clouds of malarial mosquitoes , this region is all but cut off from the outside world .