What is this vinca like vine? Is it poisonous? 62521 USA Illinois
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Wintercreeper, Euonymus fortunei
Given that you're just over in Illinois, here's the page from our Plant Finder database.
In regards to your second question, this factsheet from UMich mentions (and gives citations) for its use as a medicine. Given that, I'd avoid eating it if I were you, but there's not mention of it being especially toxic.