rhododendron? the prominent mountain foliage here is ferns, rhododendron, and mountain laurel.
I had one trail that we hiking through a narrow-ish tunnel of overgrown rhododendron for like 2-3 hours because the trail hadn't been fully maintained in decades.
thwack thwack thwack
and then AFTER the tunnel you have to literally hold on to the branches on the mountainside because the trail is narrow and eroded and falling off the side of the mountain like branch-holding gymnastics for a while>hurr east coast trails are easy