This scatter plot visualizes the Iris flower dataset, plotting petal length against sepal width. Each point is colored according to the species of the flower, using a categorical color scale from `d3.scaleOrdinal`. The visualization is built with React and rendered as SVG, using `d3.scaleLinear` for the axes and data mapping. Hovering over a point reveals the petal length via a tooltip using the SVG `<title>` element. The data is loaded asynchronously from a CSV file using `d3.csv`.