Common Name: giant hogweed Family Name: Apiaceae - Carrot family Native Range: Eurasia NJ Status: Emerging Stage 0 – Absent or very rare. (Figure 8), Fruits are dry and elliptical Toxic Principles: Furanocoumarins. semi-shade conditions. Giant hogweed is a biennial herb that can grow 8-14 ft tall. Stems are hollow, and leaves are lobed. Species information. Giant hogweed may be distinguished from native cow parsnip in that it is much larger. Large perennial herb that grows 3-5.5 m tall (approx. Stem. species: of Agricultural Resources and the UMass Extension Agriculture and Landscape Program. 5 feet in width. It crowds out other plants and takes over natural areas, especially moist environments such as riverbanks. Skin coated with this sap can become sensitive to sunlight and develop painful, burning blisters. Category. Status of known Giant Hogweed populations in Massachusetts, Status of Giant Hogweed populations in Massachusetts, Massachusetts Giant Hogweed Wanted Poster, Giant Hogweed species profile: National Invasive Species Information Center, Biennial or perennial United States: giant hogweed 6 and 7), White flowers appear mid-May Flower heads are umbrella-shaped with Except for its size, the plant can be mistaken for a number of native, noninvasive plants such as cow parsnip (Heracleum lanatum), Angelica (Angelica atropurpurea), and poison hemlock (Conium maculatum). Giant Hogweed Scientific Name: Heracleum mantegazzianum Weed Class: A Year Listed: 1991 Requirement: Eradication Other Names: Giant Cow Parsley Native To: Asia Toxicity: humans - skin contact Why is it a noxious weed? Giant Hogweed (scientific name: Heracleum mantegazzianum), also known as the Giant Cow Parsnip, is a large perennial (survives for more than one year) plant in the Parsley family. Scientific name: Heracleum mantegazzianum. Both H. maximum and H. sphondylium are often referred to as cow parsnip. That striking plant can attain a height of 4 metres (about 13 feet) and has a stout red-spotted stem and a white inflorescence up to 0.5 metre in diameter. Interpreting Wetland Status. Plants sprout in early spring from forked taproots or seeds. It crowds out other plants and takes over natural areas, especially moist environments such as riverbanks. Scientific Name: Heracleum mantegazzianum Common Names: Giant hogweed, Giant cow parsnip. 10-18 ft.,) with wide-spreading, umbrella-shaped flower clusters. King County - Giant hogweed identification and control, Washington State Noxious Weed Control Board, Columbia Basin Cooperative Weed Management Area, Invasive Species Research, Control, and Policy Forums, Washington’s Urban Forest Pest Readiness Plan, Lake Roosevelt Invasive Mussel Rapid Response Exercise, Scotch Broom Ecology and Management Symposium, U.S. Department of Agriculture APHIS PPQ Archive, USDA APHIS PPQ, Bugwood.org, Washington State Department of Transportation. Scientific Name: Heracleum mantegazzianum Sommier & Levier (ITIS) Common Names: Giant hogweed, Giant in diameter, and covered with dark reddish-purple Heracleum mantegazzianum. Name: Heracleum mantegazzianum Additional Common Names: Cow Parsnip. 2), Stem is hollow, 2-4 inches –3/8” in width) marked with 3-5 brown Hogweed in its young shoot stage, perfect for soups, stews or even better treated like asparagus and served with lemon and butter. Click on a place name to get a complete noxious weed list for that location, or click here for a composite list of all Federal and State Noxious Weeds. Of these, the plant most likely to be misidentified as giant hogweed is cow parsnip. Giant hogweed (H. mantegazzianum) is native to the Caucasus but is considered an invasive species in many areas outside its native range. Species confused with giant hogweed include Cow parsnip (Heracleum maximum), angelica (Angelica atropurpurea), wild parsnip (Pastinaca sativa), wild chervil (Anthriscus sylvestris), poison hemlock (Conium maculatum), Queen Anne’s lace (Daucus carota), and Golden Alexanders (Zizia aurea), Figure Domestic Programs Pest Evaluation. Arthur E. Miller, USDA-APHIS-PPQ, AERO, Raleigh, NC. Plant Pest Risk Assessment, ODA Heracleum mantegazzianum 2 of 11. Scientific names are presented in taxonomic groupings to the Order, except for the Monera and Fungi, which are presented only by Phylum. This species has variable characteristics and many forms have been described. Heracleum mantegazzianum is native to the western Caucasus region of Eurasia. that reach a diameter of 1.5m. Hogweed. However, it is not a legal authority for statutory or regulatory purposes. Giant hogweed has been documented in numerous locations in Washington. has leaves that look fuzzy on the underside. 4, Figure Giant hogweed is a very large plant that can grow in a variety of environments. You can help prevent the spread of invasive species! Scientific Name:. streams and rivers. cow parsnip. roots that store much of the plant’s energy. It spreads by seed and can be transported easily to backyards, ravines, parks, steams, and roadsides. Large, wide leaves can be up to 3 feet long. 1, Figure Giant Hogweed is a non-native highly invasive plant in the family Apiaceae introduced to Britain in the 19th century, mainly for ornamental reasons and is recognised as one of the most invasive species of plant in Britain and Ireland today. Disturbed habitats, roadsides, vacant lots, and along spring. Plants sprout in early spring from forked taproots or seeds. Appearance. with large umbrella-like white flowerheads . Description. Toxicity: Toxic to Dogs, Toxic to Cats, Toxic to Horses. Disclaimer: ITIS taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. Common Name: Giant hogweed Scientific Name: Heracleum mantegazzianum Origin: Asia. Common Name: Giant hogweed Scientific Name: Heracleum mantegazzianum Native Range: Asia Biology & Description: Giant hogweed is a biennial herb that grows to 8-14 feet. A similar species, cow parsnip, To avoid confusion, these species are sometimes referred to as American cow parsnip and European cow parsnip, respectively. Genus Heracleum L. (1753) Heracleum mantegazzianum Sommier & Levier (1895) - giant hogweed. Pictures (left to right): Giant Hogweed plant (left) and leaf (right). Giant hogweed (Heracleum mantegazzianum) is a member of the carrot or parsley family, Apiaceae (Umbelliferae). Giant Hogweed Scientific Name. Thank you for your patience as we work on getting it back online. One of our favourite wild foods with three edible crops but because of the phototoxicity of Giant Hogweed, Heracleum mantegazzianum, people … (Figures Description. Scientific Name. Giant Hogweed. Scientific name: Heracleum mantegazzianum Sommier & Levier (Apiaceae) Physical description: A biennial or perennial herb growing to 15 feet tall. Habitat Massachusetts Introduced Pests Outreach Project is a collaboration between the Massachusetts Dept. Giant hogweed forms dense patches that out-compete native species and expose soil, making it more vulnerable to erosion. ... First Name * Last Name * Email Address * Mobile Number (Optional) If hairs are present, they are Giant hogweed is a member of the parsley or carrot family and was first introduced to North America as a garden ornamental. CAUTION: Avoid direct contact with this plant! Use . Cow parsnip rarely exceeds 6 feet in height. Family name: Apiaceae - Carrot family. Wetland Status. a flat top and may reach 2 ½ feet in diameter. swollen resin canals (1mm in diameter). As its name suggests, giant hogweed it a large umbellifer with distinctively ridged, hollow stems. coarse and white. Common Name: Giant Hogweed Scientific Name: Heracleum mantegazzianum Sommier & Levier Legal Status: Prohibited - Eradicate All above and below ground parts of the plant must be destroyed. 6, Figure Many small, white flowers cluster together in a group that can be 2 feet long or longer. Scientific name: Heracleum sphondylium. Yes. Stems are hollow, and leaves are lobed. It thrives near streams, creeks, ditches, roads, and in vacant lots (areas that are moist to wet), throughout south Scientific Species (scientific name) Heracleum mantegazzianum Sommier & Levier Species (common name) Giant hogweed Author(s) Jan Pergl, Department of Invasion Ecology, Institute of Botany, Academy of Sciences of the Czech Republic, Pruhonice, Czech Republic Date Completed 21/07/2017 Common names are from state and federal lists. This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Heracleum mantegazzianum Sommier & Levier. Giant hogweed is easily mistaken for cow parsnip. Because of its impressive size, giant hogweed was brought to Europe and North America as an ornamental plant and garden curiosity. It spreads by seed and can be transported easily to backyards, ravines, parks, steams, and roadsides. Picture courtesy: New York State Department of Environmental Conservation. Similar Scientific Name: Heracleum maximum. Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S. The clear, watery sap of giant hogweed contains toxins that cause phytophotodermatitis. Habitat Giant hogweed looks similar to many other species in the carrot family (Apiaceae). 3, Figure It also has smaller flower clusters, and the hairs on the underside of the leaf are soft, wavy, and shiny. History and identification Giant Hogweed, the scientific name for which is Heracleum mantegazzianum Sommier & Levier was introduced into ritain in 1893 as an ornamental plant. splotches and coarse hairs. (Figures 3 and 4), Leaves are compound with three It's native, unlike its relative, giant hogweed. the following to help identify Giant hogweed: Scientific Name: Heracleum mantegazzianum; Family:Apiaceae (Carrot or Parsley) Giant Hogweed. It may not necessarily express APHIS' views. Distribution in North America:Giant hogweed has been introduced to Canada and the United States. It is moderately threatening native plant communities. Thick with purple blotches and hairs filled with sap. The common name giant hogweed usually refers to H. mantegazzianum alone but in some locales that common name refers to all three species as a group. Family: Apiaceae. In the west it occurs in British Columbia, Washington and Oregon. Leaves also arise from the large, tuberous Habitat: Giant Hogweed. The scientific name of giant hogweed is Heracleum mantegazzianum Sommier & Levier (Apiaceae) . 9, (Click on an image below to see the captioned full-size version). Please note that cow parsnip sap also may cause burns or blisters. deeply incised leaflets. Giant hogweed is a biennial herb that grows to 8-14 feet. 2, Figure Giant hogweed was introduced from Asia as an ornamental. Heracleum mantegazzianum Sommier & Levier. Importation and interstate transport of giant hogweed further is regulated by the U.S. Department of Agriculture under the Federal Noxious Weed list (7 CFR 360). US introduction and distribution: Giant hogweed is native to the southwestern Asia and smooth and scaly. Giant hogweed’s sap can make skin vulnerable to severe sunburn and blistering. This website was made possible, in part, by a Cooperative Agreement from the United States Department of Agriculture's Animal and Plant Health Inspection Service (APHIS). It displays umbrella-like clusters of creamy-white flowers. Plants sprout in early spring from forked taproots or seeds. November 16, 2001. Leaves may reach up to Giant hogweed grows up to 5m in height . It prefers rich, moist soil, in The best time to identify giant hogweed is when it is in bloom in June. giant hogweed. CAUTION: Common Name: Giant hogweed Scientific Name: Heracleum mantegazzianum Origin: Asia. The clear, watery sap of giant hogweed contains toxins that cause phytophotodermatitis. Giant hogweed forms dense canopies, outcompeting native species. Giant hogweed is listed as a Class A Noxious Weed in Washington, meaning its eradication is required; however given giant hogweed’s harmful effects to people, seek assistance from your county noxious weed control board before attempting any eradication efforts. In the east it if found in Ontario, Quebec, New York, Michigan, Maine, and Pennsylvania. giant hogweed. through July. Scientific Name and Common Name; Kingdom: Plantae – Plants Subkingdom: Tracheobionta ... Click below on a thumbnail map or name for species profiles. The best time to identify giant hogweed is when it is in bloom in June. 9). ... Heracleum mantegazzianum giant hogweed Heracleum maximum common cowparsnip Heracleum sphondylium eltrot Legal Status. herb reaching 10-15 feet in height. Giant Hogweed: Scientific Name: Heracleum mantegazzianum: Family: Umbelliferae: Growth Form: Herb: Native Range: Asia: Invasive Range: Greatest density in central and western New York, but distributed throughout New England: Introduction: The Giant hogweed was brought to North America as an ornamental and garden curiosity. Tribe Tordylieae. Giant hogweed is a distinctively large, escaped ornamental in the Apiaceae … (Figure 1), Seedlings emerge in early It is shade-tolerant, but also thrives in full sun. 8, Figure Scientific name: Heracleum mantegazzianum What Is It? Avoid direct contact with this plant! An introduced species, it is an invasive weed of riverbanks, where it prevents native species from growing. Stems are hollow, and leaves are lobed. It has a taproot or fibrous roots. Hogweed can be found along hedgerows and roadside verges, and on waste ground and rough grassland. Additionally, no transportation, propagation, or sale of this plant is allowed. (Figure 5), Undersides of leaves look Giant hogweed is on Washington’s Terrestrial Noxious Weed Seed and Plant Quarantine list, meaning it is prohibited to transport, buy, sell, offer for sale, or distribute giant hogweed plants, plant parts, or seeds. 7, Figure The PRISM system is currently down. Giant hogweed is a very large plant that can grow in a variety of environments. Find out how. Hybrids: In several European countries, low frequencies of giant hogweed × eltrot ( H. sphondylium ) hybrids occurred in areas occupied by both parent species. A fourth, not-so-innocuous, invasive giant-hogweed imposter found throughout North America is wild pa… 5, Figure Common Names. Scientific name: Heracleum mantegazzianum Sommier & Levier. 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