abstract anniversary art background black blossom decay decoration design dirty dreamy floral flower garden grain graphic grunge illustration image impressionism love modern monotone natural nature noise old painting pastel petals plant retro romantic scrapbook season shabby spring stained style summer texture valentine vintage wallpaper white attract-prey attracted attraction carnivore carnivorous carnivorous-plants clumps clusters coloring colors colouring colours cover devour digest digested digesting display distinctive edge edges enzymes flora flowers funnel herbaceous insect-trap insects nectar-like-secretions nutrient-source nutrients operculum passive-trap perennials pitcher-plants pitchers pitfall-traps plants prey proteases rims slippery species trap unusual variations variety vegetation veins