Dead Vegetables Comments

Ginsberg is the poet I was thinking of. His Walt Whitman in the supermaket poem must be on poemhunter I'd imagine

presumably these dead vegetables are in the ubiquitous floodlit supermarket, or are there no farmers markets with real living vegetables any more? by the way who was it wrote that amazing poem about walt whitman in a supermarket? was it wallace stevens? my memory escapes me.