Thank you for reaching out to us. In a normal year I would ask you to bring a branch of the plant to our office. Due to Covid our offices are closed.

Based upon your picture my best guess would be Virginia Groundcherry. I am basing this upon the narrow & smooth edge  leave shape of your plant.

This link is the closest picture to your plant's leaf structure that I could find. The link also shows a picture of the flower of the Virginia Groundcherry. Please see if this flower is the same as your have seen on your plant. https://biosurvey.ou.edu/okwild/vgcherry.html

Physalis are nightshade plants and have the potential to be poisonous. Some produces a fruit that is edible when ripe, but unripened, in its green stage, it may be poisonous to humans.

I would not recommend consuming the fruit until you have very positive identification of the plant. 

We can work your question from here in one of two ways.  Hopefully our offices will be open by next summer.  If so, you could bring a branch of your plant into the Boulder County Extension office and we could do a through examination.   I apologize for the delay.  It would also be helpful to bring along so pictures of this year's fruit once it is ripe. 

If you would like, take some good quality close up pictures of:  1. a representative branch - we would be looking for  the configuration of the leaves as they attach to the branch; 2. a close up of leaves - putting a ruler next to them would be helpful for context of size. Take a picture of both the top & bottom of the leaf;  3.  pictures of this year's fruit both unripened and ripened.  Based upon your pictures we could do a examination that could lead to an informed answer to your question.

Sorry for asking for so much.  However, there are a number of groundcherries (some call them Chinese lanterns).  There is also a number of gooseberries.  I could not find any pictures of grooseberry leaves with your plants leaf shape.  Therefore, we certainly could not give you a consumption recommendation without a very positive identification.

If you choose to send us the pictures requested we will do our very best to help you identify this variety. 

Please let us know if you have additional questions.  And thanks for reaching out to us.