This scatter plot visualizes the Iris dataset, mapping petal length and sepal width for individual flowers. An interactive color legend highlights data points by species, dimming non-matching points on hover and making the selected species prominent. Built with React and rendered as SVG using D3 scales and axes, the visualization uses `scaleOrdinal` for the color mapping and `scaleLinear` for the spatial coordinates. The legend handles mouse events to filter and focus the display.