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By 1950, giant hogweed had appeared in southern Ontario, and within a quarter-century the plant was firmly established in Ontario. It was first collected from Nova Scotia in 1980 and Quebec in 1990. Giant hogweed was still available for sale in Canadian nurseries as late as 2005.
Heracleum sphondylium, commonly known as hogweed or common hogweed, is a herbaceous perennial plant in the carrot family Apiaceae, which includes fennel, cow parsley, ground elder and giant hogweed. It is native to most of Europe, western Asia and northern Africa, but is introduced in North America and elsewhere.
Heracleum mantegazzianum, giant hogweed, native to the western Caucasus region of Eurasia, a serious invasive species in many areas of Europe and North America; Heracleum sosnowskyi, Sosnowsky's hogweed, native to the eastern Caucasus, a common weed throughout Europe and Asia; Heracleum persicum, Persian hogweed, native to Iran, Iraq, and Turkey
Giant hogweed sap can make skin extremely sensitive to the sun, causing third-degree burns in a short period of time. This can blind people if it gets in an eye. If you encounter the plant, don't ...
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Learn to recognize wild parsnip, cow parsnip and giant hogweed; these plants can cause painful skin burning, blistering and scarring. Watch out for harmful plants including poison ivy, wild ...
Giant hogweed (Heracleum mantegazzianum) [33] is a non-native invasive plant that is most widely distributed in Halton Region along Sixteen Mile Creek. Contact with this plant can cause serious burns to the skin and temporary or permanent blindness.
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