Alan Moore (writer), Stephen Bissette (artist)
Saga of the Swamp Thing #24 (1984)
Published by DC Comics
At first I was thinking about the differences between a hypothetical vegetable consciousness and a human consciousness, and […] within two or three issues, I was starting to come to the idea that this was no longer a shambling heap of muck. This was actually some kind of plant elemental, potentially some kind of plant god.
—Alan Moore, about Swamp Thing, in The Believer