I have poor eyesight combined with no visual memory, and the appearance of poison ivy varies pretty widely. So a few times (including two years ago) I sprayed weed killer on anything that looks even a little like poison ivy. A year ago I found nothing that looks like it. But poison ivy and its look alikes are common in the neighborhood, so now the boundary between my property and the next lot over is thick with various plants within the general range of poison ivy appearance. I did a first round of indiscriminate spraying anyway (if I wasn't sure it wasn't poison ivy, I sprayed weed killer). But I'd like some better hints of what to look for when I review results:
In this one, I think the plant with the sets of 3 large green notched leaves is the same plant as the one with sets of 3 smaller reddish non-notched leaves and the combination is especially indicative of poison ivy. But I didn't push any of it around to even see for sure whether it is the same plant.
This one has a very different (to me at least) combination of 3 leaves and reddish:
This next one has a lot in common with the one above. I think it must be the same kind of plant even though to be the leaf shape looks different:
Next: groups of 3 leaves, but I'm pretty sure not poison ivy. Two different plants common here look to me exactly like this. One grows into a giant shrub with sharp thorns. The other spreads staying low with tiny thorns. Please confirm it isn't poison ivy. But also what is it?
Next: The leaf shape on these two is so different from each other, it is hard to imagine they are the same kind of plant. But I suspect they are both poison ivy.