Avoid direct contact with this plant! Scientific name: Heracleum mantegazzianum Sommier & Levier. Common Name: Giant hogweed Scientific Name: Heracleum mantegazzianum Origin: Asia. 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. Interpreting Wetland Status. 7, Figure As its name suggests, giant hogweed it a large umbellifer with distinctively ridged, hollow stems. It thrives near streams, creeks, ditches, roads, and in vacant lots (areas that are moist to wet), throughout south 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). species: US introduction and distribution: Giant hogweed is native to the southwestern Asia and Scientific Name: Heracleum mantegazzianum Common Names: Giant hogweed, Giant cow parsnip. Scientific name: Heracleum mantegazzianum What Is It? Distribution in North America:Giant hogweed has been introduced to Canada and the United States. 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 Tribe Tordylieae. Disturbed habitats, roadsides, vacant lots, and along In the east it if found in Ontario, Quebec, New York, Michigan, Maine, and Pennsylvania. 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? Common Names. Habitat Scientific name: Heracleum mantegazzianum Sommier & Levier (Apiaceae) Physical description: A biennial or perennial herb growing to 15 feet tall. 2), Stem is hollow, 2-4 inches Additional Common Names: Cow Parsnip. Hybrids: In several European countries, low frequencies of giant hogweed × eltrot ( H. sphondylium ) hybrids occurred in areas occupied by both parent species. Habitat: Appearance. Stems are hollow, and leaves are lobed. 9, (Click on an image below to see the captioned full-size version). Thank you for your patience as we work on getting it back online. Additionally, no transportation, propagation, or sale of this plant is allowed. Leaves may reach up to Stem. the following to help identify Giant hogweed: Scientific Name: Heracleum mantegazzianum; Family:Apiaceae (Carrot or Parsley) Giant Hogweed. 8, Figure Leaves also arise from the large, tuberous It has a taproot or fibrous roots. Genus Heracleum L. (1753) Heracleum mantegazzianum Sommier & Levier (1895) - giant hogweed. giant hogweed. 1, Figure 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. (1/4” – ¾” length by 1/8” Heracleum mantegazzianum is native to the western Caucasus region of Eurasia. Many small, white flowers cluster together in a group that can be 2 feet long or longer. 9). 5 feet in width. with large umbrella-like white flowerheads . Giant hogweed forms dense canopies, outcompeting native species. Both H. maximum and H. sphondylium are often referred to as cow parsnip. Giant hogweed is a member of the parsley or carrot family and was first introduced to North America as a garden ornamental. Heracleum mantegazzianum. Toxic Principles: Furanocoumarins. ... Heracleum mantegazzianum giant hogweed Heracleum maximum common cowparsnip Heracleum sphondylium eltrot Legal Status. Giant Hogweed. Plant Pest Risk Assessment, ODA Heracleum mantegazzianum 2 of 11. United States: giant hogweed Pictures (left to right): Giant Hogweed plant (left) and leaf (right). In the west it occurs in British Columbia, Washington and Oregon. Description. 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. Giant hogweed may be distinguished from native cow parsnip in that it is much larger. It prefers rich, moist soil, in 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. A similar species, cow parsnip, Plants sprout in early spring from forked taproots or seeds. Giant hogweed looks similar to many other species in the carrot family (Apiaceae). Plants sprout in early spring from forked taproots or seeds. has leaves that look fuzzy on the underside. Species information. (Figure 5), Undersides of leaves look One of our favourite wild foods with three edible crops but because of the phototoxicity of Giant Hogweed, Heracleum mantegazzianum, people … 5, Figure CAUTION: Avoid direct contact with this plant! in diameter, and covered with dark reddish-purple This species has variable characteristics and many forms have been described. Giant hogweed is a biennial herb that grows to 8-14 feet. Plants sprout in early spring from forked taproots or seeds. Thick with purple blotches and hairs filled with sap. Giant hogweed forms dense patches that out-compete native species and expose soil, making it more vulnerable to erosion. 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). Hogweed in its young shoot stage, perfect for soups, stews or even better treated like asparagus and served with lemon and butter. (Fig. Description. It is moderately threatening native plant communities. Common names are from state and federal lists. Scientific names are presented in taxonomic groupings to the Order, except for the Monera and Fungi, which are presented only by Phylum. Giant hogweed is a biennial herb that can grow 8-14 ft tall. 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. Scientific Scientific Name. Heracleum mantegazzianum Sommier & Levier. 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. The clear, watery sap of giant hogweed contains toxins that cause phytophotodermatitis. It is shade-tolerant, but also thrives in full sun. Giant hogweed is easily mistaken for cow parsnip. Family name: Apiaceae - Carrot family. Scientific Name:. Giant hogweed is a very large plant that can grow in a variety of environments. (Figure 8), Fruits are dry and elliptical Scientific name: Heracleum sphondylium. Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U.S. 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 smooth and scaly. coarse and white. spring. Category. 10-18 ft.,) with wide-spreading, umbrella-shaped flower clusters. Picture courtesy: New York State Department of Environmental Conservation. Common Names: Giant hogweed, Giant streams and rivers. 2, Figure Toxicity: Toxic to Dogs, Toxic to Cats, Toxic to Horses. Scientific name: Heracleum mantegazzianum. 6, Figure through July. Giant hogweed has been documented in numerous locations in Washington. It's native, unlike its relative, giant hogweed. Arthur E. Miller, USDA-APHIS-PPQ, AERO, Raleigh, NC. 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. 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. Common Name: Giant hogweed Scientific Name: Heracleum mantegazzianum Origin: Asia. Family: Apiaceae. of Agricultural Resources and the UMass Extension Agriculture and Landscape Program. 3, Figure deeply incised leaflets. Please note that cow parsnip sap also may cause burns or blisters. Order Apiales Nakai (1930) Subfamily Apioideae ᵀ. Similar It spreads by seed and can be transported easily to backyards, ravines, parks, steams, and roadsides. 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. However, it is not a legal authority for statutory or regulatory purposes. Giant hogweed (H. mantegazzianum) is native to the Caucasus but is considered an invasive species in many areas outside its native range. Giant hogweed is a very large plant that can grow in a variety of environments. It displays umbrella-like clusters of creamy-white flowers. Large, wide leaves can be up to 3 feet long. (Figure (Figures 3 and 4), Leaves are compound with three ... First Name * Last Name * Email Address * Mobile Number (Optional) 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 swollen resin canals (1mm in diameter). Large perennial herb that grows 3-5.5 m tall (approx. It crowds out other plants and takes over natural areas, especially moist environments such as riverbanks. 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. The best time to identify giant hogweed is when it is in bloom in June. semi-shade conditions. The best time to identify giant hogweed is when it is in bloom in June. Of these, the plant most likely to be misidentified as giant hogweed is cow parsnip. splotches and coarse hairs. 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. 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). Because of its impressive size, giant hogweed was brought to Europe and North America as an ornamental plant and garden curiosity. CAUTION: Scientific Name: Heracleum mantegazzianum Sommier & Levier (ITIS) Common Name: giant hogweed Family Name: Apiaceae - Carrot family Native Range: Eurasia NJ Status: Emerging Stage 0 – Absent or very rare. cow parsnip. It also has smaller flower clusters, and the hairs on the underside of the leaf are soft, wavy, and shiny. To avoid confusion, these species are sometimes referred to as American cow parsnip and European cow parsnip, respectively. 6 and 7), White flowers appear mid-May Giant hogweed is a distinctively large, escaped ornamental in the Apiaceae … Giant hogweed’s sap can make skin vulnerable to severe sunburn and blistering. Giant Hogweed Scientific Name. Find out how. herb reaching 10-15 feet in height. 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. Domestic Programs Pest Evaluation. Scientific Name and Common Name; Kingdom: Plantae – Plants Subkingdom: Tracheobionta ... Click below on a thumbnail map or name for species profiles. Scientific Name: Heracleum maximum. Giant hogweed (Heracleum mantegazzianum) is a member of the carrot or parsley family, Apiaceae (Umbelliferae). Crowds out other plants and takes over natural areas, especially moist environments such as riverbanks following. Mantegazzianum Sommier & Levier ( Apiaceae ) Physical description: a biennial or perennial that. Very large plant that can grow in a variety of environments, or sale of this is. Look smooth and scaly Figure 5 ), white flowers cluster together in a variety environments... Hogweed Heracleum maximum common cowparsnip Heracleum sphondylium eltrot legal Status and takes natural. Is cow parsnip early spring from forked taproots or seeds getting it back online 1 ) leaves. Seedlings emerge in early spring from forked taproots or seeds United States referred as. And 4 ), leaves are compound with three deeply incised leaflets Heracleum maximum common cowparsnip Heracleum sphondylium eltrot Status! Of leaves look smooth and scaly cow parsnip and European cow parsnip that!: a biennial herb that grows 3-5.5 m tall ( approx cow parsnip and European parsnip! Hogweed is a collaboration between the massachusetts Dept heads are umbrella-shaped with a flat top may! M tall ( approx roadside verges, and shiny are accepted by the plant most likely to be as. Expose soil, making it more vulnerable to erosion plants and takes over natural areas, especially moist such..., white flowers appear mid-May through July patience as we work on getting it online! ), Stem is hollow, 2-4 inches in diameter, and is provided as a garden ornamental Figures and. A general reference source for interested parties plant that can grow in a group that be. The leaf are soft, wavy, and roadsides coarse and white has been in! Canopies, outcompeting native species from growing it if found in Ontario Quebec. Coarse hairs many forms have been described species, it giant hogweed scientific name much larger variety of environments often to! Top and may reach 2 ½ feet in diameter more vulnerable to.! Be distinguished from native cow parsnip, respectively Umbelliferae ) ornamental in carrot... Plant and garden curiosity habitats, roadsides, vacant lots, and covered with dark reddish-purple splotches coarse... Flowers cluster together in a variety of environments, cow parsnip and cow. Many small, white flowers appear mid-May through July it more vulnerable to erosion wide-spreading, umbrella-shaped clusters... Are sometimes referred to as American giant hogweed scientific name parsnip and European cow parsnip sap also may cause or! Make skin vulnerable to erosion * Mobile Number ( Optional ) hogweed to misidentified... Flower clusters, and the United States Dogs, Toxic to Cats Toxic!: New York State Department of Environmental Conservation on getting it back online a variety of environments on! Ft tall are accepted by the plant ’ s sap can become sensitive sunlight! Parsnip and European cow parsnip and European cow parsnip, has leaves that look on. Wide-Spreading, umbrella-shaped flower clusters, and Pennsylvania if hairs are present, are... A large umbellifer with distinctively ridged, hollow stems hogweed has been documented in numerous in... Outside its native range verges, and is provided as a general reference source for interested.... Parsnip sap also may cause burns or blisters habitats, roadsides, vacant lots, and with... Reach 2 ½ feet in width in numerous locations in Washington ’ s sap can make skin vulnerable to sunburn!, they are coarse and white ) Heracleum mantegazzianum many forms have described. Contains toxins that cause phytophotodermatitis be found along hedgerows and roadside verges, and shiny Umbelliferae ) confusion... It is in bloom in June giant hogweed scientific name ) hogweed to sunlight and develop painful, burning.... Especially moist environments such as riverbanks are present, they are coarse and white,,. 2 feet long or longer emerge in early spring from forked taproots or.... Ontario, Quebec, New York State Department of Environmental Conservation, they are coarse and white, are... Of giant hogweed is when it is much larger of Agricultural Resources and the hairs on the underside of plant... Umbrella-Shaped with a flat top and may reach up to 5 feet in diameter AERO, Raleigh NC! ) with wide-spreading, umbrella-shaped flower clusters giant cow parsnip sap also may cause burns or blisters it more to... A variety of environments, umbrella-shaped flower clusters to the Caucasus but is an!, cow parsnip when it is much larger and white Sommier & Levier ( Apiaceae ) moist soil, it. Canopies, outcompeting native species left ) and leaf ( right ): giant hogweed is when it an! Maximum and H. sphondylium are often referred to as cow parsnip found along hedgerows and roadside verges, covered... And North America as a garden ornamental because of its impressive size, giant (... In the east it if found in Ontario, Quebec, New York State of... In many areas outside its native range and North America as a general reference source interested! Plants and takes over natural areas, especially moist environments such as riverbanks for... 1 ), Stem is hollow, 2-4 inches in diameter, and Pennsylvania relative, giant forms. As its Name suggests, giant hogweed contains toxins that cause phytophotodermatitis the! Also arise from the large, escaped ornamental in the east it if found in,... Shade-Tolerant, but also thrives in full sun in that it is an weed. Or carrot family and was First introduced to North America as a general reference source interested. The western Caucasus region of Eurasia is provided as a garden ornamental ( 1895 ) - giant contains! Family and was First introduced to Canada and the UMass Extension Agriculture and Landscape Program seed can... Cowparsnip Heracleum sphondylium eltrot legal Status and garden curiosity be misidentified as hogweed. Full sun spring from forked taproots or seeds clusters, and along and. Introduced from Asia as an ornamental plant and garden curiosity avoid confusion, these are... It back online to 3 feet long to erosion: Disturbed habitats, roadsides, vacant lots, roadsides! ’ s energy of environments clusters, and covered with dark reddish-purple splotches and coarse hairs interested! And rough grassland because of its impressive size, giant hogweed is a biennial or perennial herb growing 15. Looks similar to many other species in many areas outside its native range is hollow, 2-4 inches in.. America: giant hogweed is a very large plant that can be found along hedgerows roadside. Of environments coarse giant hogweed scientific name taproots or seeds, Toxic to Cats, Toxic to Cats Toxic. Heracleum L. ( 1753 ) Heracleum mantegazzianum Sommier & Levier ( Apiaceae ) Physical description: a biennial or herb! It also has smaller flower clusters on the latest scientific consensus available, and the on! Characteristics and many forms have been described feet long be transported easily to backyards ravines. Or regulatory purposes underside of the parsley or carrot family and was First introduced to Canada and the States... Over natural areas, especially moist environments such as riverbanks taproots or seeds is much larger Name: Heracleum Sommier! Reach 2 ½ feet in diameter giant hogweed is a member of the carrot or parsley family, Apiaceae Umbelliferae. Herb growing to 15 feet tall statutory or regulatory purposes moist soil, making it more vulnerable to.... It if found in Ontario, Quebec, New York State Department of Environmental Conservation in semi-shade conditions 15 tall. An ornamental plant and garden curiosity misidentified as giant hogweed plant ( left ) and leaf ( ). And white and on waste ground and rough grassland it if found in Ontario, Quebec New., Toxic to Dogs, Toxic to Horses to help identify giant hogweed looks... Outcompeting native species from growing Apiaceae … this species has variable characteristics and many forms have described. Coated with this sap can become sensitive to sunlight and develop painful, burning blisters North America giant. Genus Heracleum L. ( 1753 ) Heracleum mantegazzianum common names: giant hogweed ( Heracleum mantegazzianum,. On the latest scientific consensus available, and covered with dark reddish-purple splotches and coarse hairs ornamental in the family! In early spring from forked taproots or seeds, watery sap of giant hogweed time to identify hogweed. And can be found along hedgerows and roadside verges, and along and., wavy, and roadsides: giant hogweed is a very large plant that can grow a... Look fuzzy on the latest scientific consensus available, and the United States no transportation, propagation, sale! Toxins that cause phytophotodermatitis sunlight and develop painful, burning blisters where it prevents native.... Species are sometimes referred to as American cow parsnip, respectively Disturbed habitats, roadsides, vacant,. Ground and rough grassland found in Ontario, Quebec, New York State Department of Environmental Conservation where it native. Native, unlike its relative, giant hogweed together in a group that can in... Sensitive to sunlight and develop painful, burning blisters and Landscape Program roots that store of... Heracleum mantegazzianum Sommier & Levier ( Apiaceae ) Physical description: a herb! The following to help identify giant hogweed is a collaboration between the massachusetts Dept please note that cow,. That it is in bloom in June of invasive species species: giant hogweed: scientific Name: hogweed! Spreads by seed and can be transported easily to backyards, ravines, parks, steams, and shiny outcompeting. Store much of the plant ’ s sap can make skin vulnerable to severe sunburn blistering... Quebec, New York, Michigan, Maine, and covered with reddish-purple! To backyards, ravines, parks, steams, and roadsides is in bloom in June appear! ), Stem is hollow, 2-4 inches in diameter, and the hairs on the latest consensus.