Media stories on giant hogweed have drawn attention to this invasive plant and the fact that it can cause skin irritation, blistering and burning upon contact. This has raised local public concerns and interest in the plant.

According to Alberta Agriculture and Forestry, all plants reported in Alberta to date have proven to be cow parsnip.

Cow parsnip is:

• a native plant, very common to Strathcona County
• very similar to giant hogweed – both plants are members of the Carrot family (Apiaceae or Umbelliferae)
• found in similar habitats as giant hogweed

There have been no confirmed giant hogweed plants identified in Strathcona County.

Physical differences

Learn about the physical differences between the two plants below. The main difference is that giant's hogweed can grow significantly larger than cow parsnip. 

Other resources

• Alberta Invasive Species Council
• Alberta Agriculture and Forestry
• Government of Canada Invasive Species

Further information: