Purple Dots: A Dive into the Washington Park Arboretum’s Interactive Map

a screenshot of the stylized map, showing many green dots and a few purple dots.

If you’ve spent any time looking through our interactive map of the Washington Park Arboretum, you’ve probably noticed those purple plant dots. While most of the dots denoting different plants in the collection are bright Kelly green, some of them are a festive light purple color. But why? I stumbled on this question while trying to identify a tree that I had taken a picture of when I was wandering through the arboretum a couple weeks ago. 

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