T.C.
You could take a close up picture and post a link to it. Or find out if you have a county extension office in your area and have someone there take a look at it. You are doing great to make sure the kids don't ever put unknown plants in their mouths- I always tell my son that those plants are for the birds to eat, not for people. And I keep the number for poison control on my refrigerator just in case.
I'm not from your area, but I think this might be it, from http://dcmga.com/
Call ###-###-#### ........ When volunteers are available, you may bring in a sample of diseased plants or plants you want us to identify, or call to ask your gardening questions.