Weed seeds
Subtitle: illustrated in colour
By: by W.H. Wright
Contributors: Canada. Department of Agriculture. Division of Plant Products
Publisher: Office of the King's Printer
Published: 19uu
Place of publication: Ottawa]
Language: eng
Notes: Contains: spurge family, mallow family, st. john's wort family, violet family, loosestrife family, evening primrose family, parsley family, primrose family, convolvulus family, borage family.