Old Basil Pot

Basil, an oregano cutting, and my mystery tree.
I grew 2 big basil plants in this pot over the summer, and chopped them to the ground to make pesto. Now they're growing back as little bushes. One of them has deformed leaves... like it did before I chopped it. Wonder what causes those.

Also, a tree that's growing on it's own... not sure what it is yet.