I had a favorite young shagbark there
With ample dark jade leaves and black, spare,
Vermiculated trunk.
from Pale Fire, Canto 1
...no phantom would
Rise gracefully to welcome you and me
In the dark garden, near the shagbark tree.
from Pale Fire, Canto 3
Where are you? In the garden. I can see
Part of your shadow near the shagbark tree.
from Pale Fire, Canto 4