Callery / Bradford Pear trees in Pittsburgh
Bus shelter poster re: "Uprooted: Plants Out of Place," an exhibit at Carnegie Museum of Natural History.
New #PGH Gardener: "What are these #trees in my yard?"
Internet: "Learn how to ID #SWPA trees."
NPG: "Wow, including invasive trees, too. Hmmm. #Callery / #Bradford #Pear."
Internet: #INVASIVE. #DAMAGING TO WOODLANDS. #REMOVE."
City of PGH: "We planted them everywhere. In huge bunches. On purpose."
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