Answer: Unfortunately, based on your description I am not certain what you have. I would certainly NOT eat it until you have a definite, specific identification from a reputable authority and know that it is safe to do so. It might be one of the nightshades, for example, as shown at the following url. You will probably need to cut and paste it into your browser to make it work correctly because it is too long.
I would suggest you work with your local county extension, a local naturalist, or possibly a professionally trained nurseryman to obtain an identification of it. Good luck with your quest!
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