"A weed that can grow six metres tall, sprout massive leaves and produce toxic, blindness inducing sap is creeping into Ontario and parts of British Columbia.
Giant hogweed is easily identified by its teetering height. The leaves on the weed fan out as much as 1.5 metres in diameter. It is also identified by its tell-tale purple splotching on the stem and its umbrella-like cluster of white flowers."
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