Sentence:  He stuck a number of <WSD>sallows</WSD> in a circle, at equal distances, in the grass; the circle was the size which he wished the basket to be. He then began to weave other <WSD>sallows</WSD> between these, in a manner which Frank easily learned to imitate ... 
Meaning of the word marked with <WSD> tags:  A willow twig or branch.