Poison Ivy - Handle with care!

The other day, I found some plants that I did not plant in my garden and those plants appeared to be poison ivy plants, but I was not sure. So, I searched the internet and found pictures of poison ivy. It turns out that there are many varieties in poison ivy family. I took a picture of the plant from my garden and compared it to the pictures I found on the internet and sure enough, it is identical to the picture shown on the Wikipedia site. So, I attached these pictures here to show them in case others want to know what they look like. I assume these plants are abundant in Fremont, California since that is where I am located.