Page authors: Don Knoke, David Giblin
Heracleum mantegazzianum
giant hogweed
Specimens
Photos
Distribution: Occurring west of the Cascades crest in the Puget Trough lowlands in Washington; southwestern British Columbia to Oregon, also in eastern North America.
Habitat: Disturbed areas often associated with residential development; Class A noxious weed.
Flowers: June-July
Origin: Introduced from Eurasia
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bumblebees, bees, flies
Description:
[none provided]
Accepted Name:
Heracleum mantegazzianum Sommier & Levier
Publication: Nuovo Giorn. Bot. Ital. ser. 2, 2: 79. 1895.
Publication: Nuovo Giorn. Bot. Ital. ser. 2, 2: 79. 1895.
Synonyms & Misapplications:
(none provided)
Additional Resources:
PNW Herbaria: Specimen records of Heracleum mantegazzianum in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Heracleum mantegazzianum checklist entry
OregonFlora: Heracleum mantegazzianum information
E-Flora BC: Heracleum mantegazzianum atlas page
CalPhotos: Heracleum mantegazzianum photos
10 photographs:
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