Author: | Open Learning Agency (OLA) and British Columbia Ministry of Agriculture, Food, and Fisheries (MAFF). |
Title: | Guide to weeds in British Columbia. |
Publisher: | Open Learning Agency. Burnaby, British Columbia, Canada |
Keywords: | Echinochloa crus-galli, Conium maculatum, poison hemlock, Marsh plume thistle, Cirsium palustre |