I'm not holding out much hope on a 100% ID but even if I could get it down to a general species it would be good. Sorry that the photos aren't all that great, I was just snapping as I went past.
Is the first one a thistle? The leaves look like a thistles, that's about it.
This plant starts off with blueish flowers that turn to white, it produces a yellow berry/fruit. The stems have pretty good sized spikes on them, about an inch long.
This plant is pretty big, it's over 2 meters tall and spreading over an area of 3-4 meters. You can make out that the flower spikes produce berries / fruit.
This plant also gets pretty big, some of the plants have spread over several meters. It grows along the ground. I don't know how the berries / fruit look once mature.