Survival of the Mystery Greens

New Leaves are growing from the older plant! I am still not certain what kind of lettuce that I have growing in the wine barrel planter; but here is proof that lettuce can, indeed, survive all of Oregon's seasons, even with freezing temperatures. I already ate a few salads from this plant and then I forgot about it until recently. It appears something else was feeding on it also. I think I want to keep this lettuce plant going as long as possible as a test to see if it will eventually spread it's seed, somehow.