id,species,tribe,source,pageno,use_category,use_subcategory,notes,rawsource 10487,1051,17,139,50,5,55,Area next to the root bark used as a blue dye.,"Nickerson, Gifford S., 1966, Some Data on Plains and Great Basin Indian Uses of Certain Native Plants, Tebiwa 9(1):45-51, page 50"