Sentence:  Perhaps indifferent to their social Rejection, he sets to work separating his Tree into Poles, Sticks, and <WSD>Withes</WSD>, and placing them wherever in the Structures of Dam or Lodge he feels they need to go. 
Meaning of the word marked with <WSD> tags:  A flexible, slender twig or shoot, especially when used as a band or for binding; a withy.