06/12/2024
Check out how close these two look! Be sure to do your research before assuming invasive species are on your property, and always feel free to reach out with ID questions.
Identifying invasive plants isn’t always easy, and it’s made even more difficult when there are common lookalike plants.
Wild parsnip is an invasive plant of special concern. Adverse skin reactions can be triggered when the sap of broken parsnip plants (in leaves, stems and flowers) contacts the skin and is then exposed to sunlight. Reactions can vary from minor rashes to severe burns and scarring, so wild parsnip is a plant to be avoided.
Native golden alexander looks very similar to wild parsnip, so the two are often mistaken for one another. Both plants have similar flowers in umbels (umbrella-shaped flower arrangements).
Golden alexander is significantly smaller than wild parsnip when mature, growing only to 3 feet in height, with smaller leaves and smaller, looser, uneven flower clusters. Golden alexander also blooms first; wild parsnip blooms later in the season.
The shape of the plants' leaves can also be used to tell the two apart. Wild parsnip leaves are deep and forked with coarsely toothed edges; golden alexander leaves are finely toothed with pointed tips.
Learn more about wild parsnip on our website: https://dnr.wisconsin.gov/topic/Invasives/fact/WildParsnip