When they built the house on the lot just to the South of ours, they cleared the pad for the house and went over the property line at least 2 or 3 feet through about a 20' length. No big deal in itself.
But, in order to assure that small strip of land is not lost due to acquiescence and "squatters rights", I have been locating our corner posts and hacking my way through my "jungle" to brush and layout the property lines simply to assert ownership.
Just before breaking out into the "encroachment" area, I find this:

Two more Phaius' in bloom and a multitude of young ones that will bloom next year If I can get them some exposure to sunlight.
Actually there is a third one in bloom in the last pic.
But, I can't find it in the photo.
They are all on our side of the line from a few inches to several feet.
I now have another reason to assert our ownership of that strip.
You can see the "encroachment area" in the background of the last pic.