It may come as a surprise to know that you probably have a dangerous plant or two in your garden. Some are obvious, popping up and invading your entire landscape. Others are more discreet, relying on birds, wind, and unknowing humans to spread their progeny throughout woodland areas where they infiltrate and displace natural flora and fauna. Some wait for the curious pet to take a bite before unleashing their life-threatening assault. Before you prepare another hole for your next plant, get to know some of the biggest bullies on the botanical block.