plotting - How to pass options to ListPlot when using a DataSet?

Still learning the new DataSet feature, I would like to create a ListPlot where the color of the points is to be determined by a column in the dataset. Here is what I have:

(* import and set column names *)
iris = SemanticImport["http://aima.cs.berkeley.edu/data/iris.csv"];
iris = iris[All, <|
    "SepalLength" -> 1, "SepalWidth" -> 2, 
    "PetalLength" -> 3, "PetalWidth" -> 4, "Species" -> 5
|>] 


(* ListPlot *)
iris[ListPlot, {"PetalLength", "SepalWidth"}]

Now I have no idea how to set the color according the "Species" column. The documentation did not help. Ideally, the plot has a legend mapping colors to species.

Any hint appreciated!

Answer

color[s_] := Switch[s, "setosa", Red, "versicolor", Green, "virginica", Blue];
iris[ListPlot[Style[{#,#2},color@#3]&@@@#,
              BaseStyle->{PointSize[.015] ,FontSize->16},
              PlotLabel->"Iris Data"]&, 

 {"PetalLength", "SepalWidth","Species"}]