Symbols and Icons of this Deity:
He has a helmet that renders the wearer invisible
Dogs, three headed or otherwise
Pomegranates
Rivers, asphodel, narcissus ~ I associate him with Hellebores, but that’s just UPG
Skulls, cemeteries, headstones, and the like
Chickens, roosters, cornucopia, jewels, cypress, white poplars, tawny owls, horses, snakes