Where do I report sightings of giant hogweed? - Ask Extension
I walked around Font Hill Wetland Park near Rte. 40 in Ellicott City when I saw at least half a dozen of these plants. I understand one should report...
Knowledgebase
Where do I report sightings of giant hogweed? #564266
Asked May 24, 2019, 4:05 PM EDT
I walked around Font Hill Wetland Park near Rte. 40 in Ellicott City when I saw at least half a dozen of these plants. I understand one should report them but I don't know to whom.
Howard County Maryland
Expert Response
Hi- we think that you may be observing cow parsnip (Heracleum lanatum), a related plant that can cause a dermatitis reaction if handled.
Cow parsnip has solid green stems and giant hogweed has green stems spotted purple. The latter is also a much larger plant.
Please read about the differences on this page and let us know, if after closer examination, you think that it is giant hogweed.
http://www.tcweed.org/2018/08/13/giant-hogweed-and-cow-parsnip-which-is-which-and-why-you-should-care/
Jon
Cow parsnip has solid green stems and giant hogweed has green stems spotted purple. The latter is also a much larger plant.
Please read about the differences on this page and let us know, if after closer examination, you think that it is giant hogweed.
http://www.tcweed.org/2018/08/13/giant-hogweed-and-cow-parsnip-which-is-which-and-why-you-should-care/
Jon
Thank you! It does seem to be cow parsnip as there is no hint of purple on it. I appreciate the information.
Thank you! It does seem to be cow parsnip as there is no hint of purple on it. I appreciate the information.
You are welcome.
