Bindweed? Knotweed? advice appreciated
We moved into a new house in January of this year and now spring has arrived the garden is throwing up some interesting plants... one of which is some worrying looking weed around our pond, which we'd appreciate some help identifying.
Some photos below, it's some sort of bindweed, we hope not Japanese Knotweed, but we really don't know. The stalks are quite bamboo like, although not hollow it seems, the leaves are arrow shaped with a point, and the stems and leaf veins are red. They are only about a foot high at most and don't seem to have spread too far. They have not flowered yet, so hard to tell what they will look like but we don;t want to leave it too long if more urgent action is needed. There is a photo we have from the estate agent advistisement that shows the weed with more growth and flowers, but not the best resolution, that's below too.
any advice gratefully recieved!