These two plants might look similar, but one will cause only mild irritation while the other can kill both animals and humans ...

Cow parsnip and many of its relatives produce powerful chemical substances as protection. The best known are furanocoumarins, which seem to defend the plant against fungi and perhaps other consumers.

So the flower show featured lots of white flowers—yarrow, beach lovage, and cow parsnip. Cow parsnip (a.k.a. pushki or so-called Indian rhubarb) also adorns many of our roadsides and trails and ...

Multiple cow parsnip plants grow along a trail near the University of Alaska Anchorage on Tuesday, July 23, 2024. (Matt Faubion/Alaska Public Media) It's peak season for Alaska's cow parsnip ...

Of all the people I know, I suspect Joe Derek is the only one who would reach out to tell me he has 50 cow parsnip plants growing in his yard. I did not initially share his excitement for them ...

Cow parsnip (Heracleum maximum) is the only member of the hogweeds that is native to North America. Like other hogweeds, cow parsnip sap can cause blisters and phytophotodermatitis. There is currently ...

Another plant with phototoxic properties is the cow parsnip. This invasive plant is native to Europe and Asia and looks like a mini version of giant hogweed. The main difference between the two is ...