It's a fig! Exact leaf shape and texture don't conform to any standard and are quite variable, especially with seedlings. I've seen that much variation on a single plant. The side views clinched it for me, since the stem, the petioles, and the new bud all have the fig gestalt. The major difference between fig and mulberry is size: fig has bigger, thicker growth all around. New mulberry leaves have two upward pointing bracts where the petiole connects to the stem.

I have had Euphorbia sap in my eyes after doing some cutting and then (stupidly) rubbing my eyes. Although I did not go blind, I couldn't see well, and it was certainly the most irritating physical experience in my life. It felt as though someone was jabbing my eyes with an ice pick. This lasted about 2 days. My eyes dried out from too many tears, and I had to flush them every few minutes the whole time. Needless to say I didn't get a "wink" of sleep during the ordeal. When handling any Euphorbia, it's best to wear disposable gloves and wash thoroughly before touching anything else. I learned this the hard way. Now you don't have to go through the same thing.

The stems that hold the heads are round (tube) and the leaves are flat and V shaped. I'm not sure the correct terms but it has one long vein down the middle of the flat leaf. Best picture I could take. Thanks, you've been a really big help!

There are some moths that are extraordinarily beautiful. This isn't really one of them, if that is your criteria. However, I wouldn't allow them (or anything) to completely devour my ornamental plants, unless I had planted them as a specific host plant for that purpose. Many people plant milkweed because it is a host plant for the Monarch Butterfly, and will allow those caterpillars to munch away as much as they want to.