Help. Something gave me a bad rash back in the spring. I don't want to go through that again but I have a hard time distinguishing plants but I bet there are some folks here that can easily ID this stuff.
#1 (Doesn't fit the normal descriptions of oak, ivy, sumac but I don't want to take any chances)

2.

3. (I think the thorns mean not poisonous)

4.

5.
TIA for the advice.
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Joe
See Porsche run. Run, Porsche, Run:
`87 911 Carrera