Sunflowers on graves / sunseeds in pockets
Memes including sunflowers or graves or sunseeds in pockets relate to a scene from early in Russia's full-scale invasion of Ukraine in which an elderly woman approaches Russian soldiers and gives them sunflower seeds, so that sunflowers (a symbol of Ukraine) will grow from their corpses (video linked below). Memes of this type will sometimes present a large field of sunflowers, implying that each sunflower has grown from the body of a separate Russian soldier.