Mature black locust trees have deeply furrowed, dark gray or brown bark that looks rugged and gnarly. Young trees may show smoother bark but will still have a characteristic reddish hue.

On this edition of ID That Tree, meet the black locust, which is recognizable by its small, rounded pinnate leaflets; gray bark with rough, long running ridges with orange undertones; and paired ...

Black locust is native to North America but not native to Minnesota. It has been widely planted as an ornamental plant and for erosion control, and has been documented to be invasive in the upper ...