Help with ID - possibly a Eugenia?

[PltdWorld]

Anyone have an idea of what this might be?

I found it in a small container with a pitanga (surinam cherry) I planted several years ago.  Sometimes when I have seeds that don't germinate, I put them into pots with other plants.  In this case, there was a label in the container - but it was sun faded and I couldn't make out a single letter.  I repotted into its own 1gal container, but want to label it with something other than "mystery" if possible.

Any help figuring out what this might be is appreciated...