This interactive scatter plot visualizes the classic Iris dataset, mapping petal length against sepal width. Each point is colored by species using a `d3.scaleOrdinal` color scale, with a custom color legend built from React components that displays the species names alongside colored circles. The visualization uses `d3.scaleLinear` for both axes, includes formatted tick labels, and incorporates tooltips via SVG `<title>` elements. Rendering is done through React and D3 v5, with data loaded asynchronously from a CSV file.