Can anyone please tell me what this plant is? My family and I moved into a house last fall, and the garden is full of things we can't identify. This particular plant appears to be a shrub, but we are unsure. The leaves feel fuzzy and soft. When broken off, the leaves give off a distinct smell. When pulled out, the roots are extremely long, twisting throughout the garden, and connecting to other plants like it. There are so many of these in our garden, and I think they're choking out everything else. Three different pictures of the same plant can be found at these links:
https://i153.photobucket.com/albums/s210/Eno1286/100_2568.jpg
https://i153.photobucket.com/albums/s210/Eno1286/100_2565.jpg
https://i153.photobucket.com/albums/s210/Eno1286/100_2564.jpg
Any help is appreciated. Thanks.