This visualization displays the classic Iris dataset as an SVG scatter plot, mapping petal length against sepal width and coloring each point by species. A color legend appears on the right, identifying the three iris species with distinct hues. Built with React and D3 v5, the code uses `scaleLinear` for both axes, `scaleOrdinal` for color mapping, and custom React components (`AxisBottom`, `AxisLeft`, `Marks`, `ColorLegend`) to render ticks, circles, and legend items. Data loads asynchronously via D3's `csv` parser, which also converts numeric fields.