Check out this photo of young plants of Toxicodendron radicans, and compare with Ann's similar photo. That's from an education site but I guess it could be wrong.
http://src.sfasu.edu/~jvk/Pine...
They are both the same genus and both seem to be variable. Some drawings suggest poison oak, but most photos I find don't.
http://media.summitmedicalgrou...
http://www.poisonoakguides.com...
http://calphotos.berkeley.edu/...
The next site has photos of flowers etc. by using the forward and back button ..
http://poisonoak-id.com/inShad...
Some variation in leaves ..
https://www.dot.ny.gov/dangero...
