Then There Was That Time Joe Kubert Drew Swamp Thing!!

Well, maybe not. We'll let you decide:

As the cover tells us, a couple of American WWII fighter pilots have crashed in the middle of the ocean, and pretty much have no hope of survival.

Until...

And so Seaweed Dude goes on to narrate the anthology's tales, and...

A force animating seaweed? Total plant elemental, right?

So we rejoin our guys, four weeks later (!!!)...

OK, that was so completely a plant elemental....an earlier version of Swamp Thing, right? Right?!?!

From Weird War Tales #3 (1972)