Name: Daisy I Reno, Nv (Zone 6b) Not all who wander are lost
No, that is BIndweed (wild morning glory).
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost
President: Orchid Society of Northern Nevada
Pics 1, 4 and 5...agree with kniphofia. It is Japanese knotweed.
It may be growing from the other side of the fence.
Building societies can refuse to give a mortgage if they find it in a garden.
Eeck...it will grow through tarmac. Through concrete.
Carpet/tarpaulin laid on top will not kill it!
Do not even attempt to cut it down.
Do not attempt to try and dig it up.
Every tiny bit missed will regrow.
Do not think to dump it or put it in rubbish bins.
Use "Round Up" .....but only when in full leaf and growing strongly with lots of healthy leaves..in say August.
Use to exact instructions.
Do not be tempted to make solution stronger.
It works slowly by the plant taking in the chemical in and killing from the root up.
It is not an instant kill like some weed killers seen on TV adverts.
It may need more than one or 2 attempts.
We had it in our old garden in a small area...planted as an ornamental plant in years gone by.
We did eradicate it.