This scatter plot visualizes the Iris dataset, showing petal length against sepal width for three species of iris. The species are encoded by color using a categorical scale mapped to an ordinal color legend. Built with React and D3 v5, the visualization uses `scaleLinear` for the axes, `scaleOrdinal` for colors, and reactive rendering via the `useData` hook to load CSV data. SVG circles represent each data point, with axes and legend components rendered separately.