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Heracleum mantegazzianum; photograph (c) Andre Hosper, some rights reserved (CC BY) CC BY(c) Andre Hosper, some rights reserved (CC BY) · observed growing wild · 2026-08-29

Heracleum mantegazzianum Sommier & Levier

Giant hogweed; Cartwheel flower; Mantegazzi's Cow-Parsnip; Giant cow-parsnip

Apiaceae · North Caucasus, Transcaucasus

No habitat climate
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Heracleum mantegazzianum, photograph author not stated, no rights reservedHeracleum mantegazzianum, photograph author not stated, no rights reservedHeracleum mantegazzianum, photograph author not stated, no rights reservedHeracleum mantegazzianum, photograph author not stated, no rights reservedHeracleum mantegazzianum, photograph (c) Janice Kerfoot, some rights reserved (CC BY)Heracleum mantegazzianum, photograph (c) lvicatko, some rights reserved (CC BY) 62 photographs ›

Summary

Heracleum mantegazzianum, commonly known as giant hogweed, is a monocarpic perennial herbaceous plant in the carrot family Apiaceae. H. mantegazzianum is also known as cartwheel-flower, giant cow parsley, giant cow parsnip, or hogsbane. In New Zealand, it is also sometimes called wild parsnip (not to be confused with Pastinaca sativa) or wild rhubarb.

Quoted from Wikipedia, "Heracleum mantegazzianum", CC BY-SA 4.0.

Cultivation

Nothing derived: no habitat climate for this species.

Climate across the habitat

No habitat climate can be derived: No georeferenced record inside the range.

Natural habitat

Native range as published by WCVP.
No openly licensed record to show inside the range.
NativeNorth Caucasus, Transcaucasus · introduced: Denmark, Finland, Føroyar, Great Britain, Iceland, Ireland, Norway, Sweden, Austria, Belgium, Czechoslovakia, Germany, Hungary, Netherlands, Poland, Switzerland, France, Bulgaria, Italy, Romania, Baltic States, Central European Russia, Ukraine, Tasmania, New Zealand North, New Zealand South, Alaska, British Columbia, New Brunswick, Newfoundland, Nova Scotia, Ontario, Prince Edward I., Québec, Oregon, Washington, Illinois, Minnesota, Connecticut, Maine, Massachusetts, Michigan, New Hampshire, New Jersey, New York, Pennsylvania, Vermont, Maryland, North Carolina, Virginia, Argentina South · regions are the level-3 units of the World Geographical Scheme for Recording Plant Distributions, as Kew's World Checklist records ranges, some under historical names such as Yugoslavia or Czechoslovakia (how).
Kew's description“biennial or perennial” · “temperate” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedNo georeferenced record lies inside the stated native range, and all 611 georeferenced records read lie outside it: the range and the records disagree. They are not used, and no map marker or climate is derived from them.

Photographs

Heracleum mantegazzianum, photograph 1did not loadHeracleum mantegazzianum, photograph 2did not loadHeracleum mantegazzianum, photograph 3did not loadHeracleum mantegazzianum, photograph 4did not loadHeracleum mantegazzianum, photograph 5did not loadHeracleum mantegazzianum, photograph 6did not load

Photographs: author not stated, no rights reserved · CC0 (4); (c) Janice Kerfoot, some rights reserved (CC BY); (c) lvicatko, some rights reserved (CC BY).

Other Heracleum 11 in the reference

Heracleum austriacum Heracleum austriacum Austrian Hogweed Photo: CC BY, Elias Heracleum candicans Apiaceae Heracleum dissectum Heracleum dissectum Pinnatifid-leaf hogweed Photo: CC BY, open_a_irHeracleum lehmannianum Heracleum lehmannianum Apiaceae Photo: Public domain, ThueHeracleum leskovii Heracleum leskovii Leskov's Cow-Parsnip Photo: CC BY, charlie chavianoHeracleum maximum Heracleum maximum Cow parsnip Photo: CC BY, snowglobinHeracleum persicum Heracleum persicum Persian hogweed Photo: CC BY, Geert BarentsenHeracleum sibiricum Heracleum sibiricum Apiaceae Photo: CC BY-SA, Kenraiz Krzysztof ZiarnekHeracleum sosnowskyi Heracleum sosnowskyi Sosnowsky's hogweed Photo: CC BY, Мирослав СоболевHeracleum sphondylium Heracleum sphondylium Hogweed Photo: CC BY, Joss Carr Heracleum villosum Apiaceae

Names & registers

Also known as Heracleum circassicum; Heracleum grossheimii; Heracleum mantegazzianum f. rosicalyx; Heracleum mantegazzianum var. immaculatum; Heracleum montegazzianum and 2 more. (GBIF Backbone)

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Apiaceae
Described by
Sommier & Levier
Native to
North Caucasus, Transcaucasus
Wild records
none in range · 611 outside it

Every figure here is derived from public data by a stated rule and names its source; nothing about this species is written for its page by a person or by AI, apart from the marked, credited quotations. How →

Where this page came from built 2026-10-22
GBIF species record gbif.species answeredasked 2026-10-22
GBIF synonyms gbif.synonyms answeredasked 2026-10-22
GBIF common names gbif.vernacular answeredasked 2026-10-22names fetched 2026-10-22
WCVP native range wcvp.distribution answeredas of 2026-06-04
GBIF occurrence records gbif.occurrences answeredasked 2026-10-22GBIF occurrence search API; 21 records within 1 km of a botanic garden, herbarium or zoo left out (6 at a botanic garden or arboretum, 4 at a herbarium, 11 at a zoo; Wikidata's list)
Habitat climate climate nothing to reportasked 2026-10-22no georeferenced record inside the range
Wikidata wikidata answeredasked 2026-10-22
Wikipedia wikipedia answeredasked 2026-10-22
iNaturalist photographs, wild inat.photos.wild answeredasked 2026-10-22from iNaturalist's open data of 2026-09-27: research-grade observations with an open-licence photograph, the 24 whose photographs iNaturalist received last (the open data holds no votes); filled 2026-10-22
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media answeredasked 2026-10-22
OpenAlex papers openalex not askednot yet asked for this reference; a later fill takes the papers from OpenAlex's snapshot

Every source is recorded as having answered, reported nothing, refused, failed, not been asked, or answered twice where one answer is taken (“not taken: two items answered”), and, for a source asked when this page was built, when: the figures are as the source held them that day; a source read from a file (Kew's World Checklist, a GBIF download) says "as of" the file's day instead; a row carried from an earlier build of the page names that build instead. Only “nothing to report” is ever shown as an absence. Records came from 14 datasets via GBIF.org; each carries its own licence.

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