An early Flag....I think
We had a mild winter here. At first frost, I cut the leaves off of my 10' Orinoco. So far this year 2 real leaves have come out.
This am I looked up and a short flag looking leaf had emerged. I have never had a flower on my plants--in 13 plus years. However last year I watered them a bunch and fed them stuff.
I will try to post a photo or two later and perhaps someone more familiar with flag leaves can chime in.