Holy bindweed, Batman!
I spotted this invasion in progress at the McKinley Monument in Canton and instantly pitied the poor person who's going to have to deal with it.
Bindwind is a noxious weed that twines over shrubs and other plants, making it difficult to remove. It also produces an extensive root system, so it has an amazing ability to keep coming back. It's like the Rasputin of the weed world.
I've struggled with bindweed in my yard for years. I pull it whenever I see it, and it's fairly well under control now. Other gardeners put the ends of the stems into containers filled with watered-down Roundup and leave them there long enough for the plants to absorb the herbicide and take it all the way back to its roots. You can read about one gardener's experience with that method in this post on GardenWeb.
Don't let those sweet flowers fool you. This is one weed that needs to go.