Hogweed
/ˈhɔːɡwiːd/
Definition 1 of 1
Pro Tip 1/3Irritant Plant
Hogweed can cause skin reactions; mention in contexts discussing plant safety. 
If you're going hiking, remember that hogweed along the trails can be harmful.
Pro Tip 2/3Invasive Species
Giant hogweed is considered invasive; use when discussing environmental impact. 
Local farms are combating the spread of invasive hogweed to protect crops.
Pro Tip 3/3Identifying Hogweed
Recognizable by its size and white flowers; useful when identifying plants in nature. 
The field was full of what I recognized as hogweed due to its towering stems and white blooms.