Basic Trope: The effect something has on living beings is demonstrated by its effect on a plant. * Straight: Mad Scientist Doctor Phylophobe demonstrates his new supertoxin by dropping a small amount on the leaf of a nearby pot plant, causing it to shrivel up and die on the spot. * Dr. Hazel Roseflower demonstrates her health-boosting nanobots by introducing them to a blotchy, pest-eaten plant, which instantly begins repairing its damage and visibly growing larger, as dead caterpillars drop to the soil around it. * Exaggerated: Phylophobe drips his toxin on a blade of grass in an arboretum - a black wave spreads across the ground as every plant in a 100-yard radius dies off. * Downplayed: Nothing happens, at first. Then the Doctor produces One I Prepared Earlier, which is b