Sentence:  Sometimes she scrabbled through the drifts on hilltops and found a few wizened <WSD>bearberries</WSD> or a handful of rock-tripe, a kind of moss. 
Meaning of the word marked with <WSD> tags:  Any of three dwarf shrubs of the genus "Arctostaphylos", which principally grow in arctic and subarctic regions and bear edible berries.