Rhododendron native to Pennsylvania bloom in early summer.
In the wild they can become bramble like
and when out walking or biking one might wonder
if there is a black bear lurking behind them.
PA. NATIVE RHODODENDRON
Although some species have not been proven dangerous, it is well to consider all members of the laurel rhododendron-azalea group of plants as potentially toxic.
(I didn't know that)