With seeds so sticky they adhere to rubber boots, deer, dogs and anything else, this invasive shade plant spreads like wildfire, smothering native plants on the forest floor that wildlife need. In a few short years, it has swallowed hundreds of acres of Maryland parks and private land. A drought-tolerant trailing perennial, it also roots where stem nodes touch soil. It's easy to scout, because its distinctive wavy leaves stay green all summer then turn bright yellow in fall. Keep an extra-sharp lookout now, as seed stems are appearing. Once seeds develop, heavily infested areas cannot be entered for eradication because it is impossible to exit without spreading seeds. Spray, or pull, bag and seal — and feel good about combating this bully of a plant.