Madera o palos que flotan en el agua (mares, lagos, ríos) o que se han acumulado en sus orillas.

Driftwood (uncountable noun).

Driftwood: wood which is floating on the sea or brought onto the beach by the sea.
Cambridge Dictionary Online. 

I could not find my glasses in the driftwood.

In Modern Literature:

"Eric and the boy I thought was named Ben gathered broken branches of driftwood from the drier piles."
Twilight by Stephenie Meyer.

"Jacob strolled to a nearby driftwood tree that had its roots sticking out like the attenuated legs of a huge, pale spider."

Twilight by Stephenie Meyer.

In News:

"On Ninety Mile Beach, at Lake Tyers, we wandered for hours among the dunes and built dens from driftwood."
The Telegraph UK.