This scatter plot visualizes the Iris dataset, showing petal length against petal width. Points are colored by species—red for virginica, blue for setosa, and green for versicolor—with tooltips revealing exact values and species names. The visualization uses D3 v7 APIs including `csv`, `scaleLinear`, `axisLeft`, and `axisBottom` within an SVG rendered via React. Axes are positioned using margin offsets, and the plot fills the browser window.