Sentence:  Small streams with hollowed-out banks came into sight, and the tiniest mill-ponds with frail dams, and little villages with low peasant huts under dark roofs, often with half their thatch gone, and small threshing barns all tilted to one side with walls made out of woven <WSD>brushwood</WSD> and gaping openings beside dilabidated hay-barns ... 
Meaning of the word marked with <WSD> tags:  Branches and twigs fallen from trees and shrubs.