Any ideas what these belong to? Am currently weeding around the veg garden and keep finding these in the soil. They don't appear to be attached to stems or foliage, but are very brittle, creamy coloured "roots" or "runners"?? The area where I'm digging had a lot of nettles previously, but they don't look like the nettle roots, which are much darker yellow and more fibrous. There are other annual and perennial weeds in the vicinity, (dandelion, thistles, bindweed, dock and couch grass) plus an old raspberry patch of Autumn fruiting variety.