I have a Persian lime tree. I am worried that these other two branches might be rootstock suckers. I don’t know where the graft line is so I don’t know if these branches are from the Persian lime or the rootstock. All the leaves coming from the three branches smell like lemon though and I currently have a few lemons sprouting from the largest middle branch. I think the other branches have sprouted lemons as well but i don’t remember for sure as they currently have no lemons sprouting. I will also attach a picture of when the Persian lime tree was small as well, and a picture of the lemons from the middle branch.