Ambrosia
bursage, burweed, ragweed
Specimens
Photos
Origin: Native
Conservation Status: Not of concern
Description:
[none provided]
Accepted Name:
Ambrosia
Publication: Sp. Pl. 2: 987. 1753; Gen. Pl. ed. 5, 425. 1754.
Publication: Sp. Pl. 2: 987. 1753; Gen. Pl. ed. 5, 425. 1754.
Synonyms & Misapplications:
(none provided)
Species in Ambrosia:
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Ambrosia acanthicarpa – flat spine bur-ragweed, annual bursage, bur ragweed
Occurring east of the Cascades crest in Washington; Washington to California, east to the Great Plains. -
Ambrosia artemisiifolia – annual ragweed, common ragweed Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
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Ambrosia chamissonis – silver beachweed, beach bur, cutleaf beach bur, silver bur-ragweed Occurring west of the Cascades crest along the marine coastline beaches in Washington; British Columbia, south along the coast, to California.
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Ambrosia psilostachya – perennial ragweed, western ragweed Occurring east of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
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Ambrosia trifida – giant ragweed Occurring chiefly east of the Cascades crest; Alaska to California, east across North America to the Atlantic Coast.
Additional Resources:
PNW Herbaria: Specimen records of Ambrosia in the Consortium of Pacific Northwest Herbaria database
WA Flora Checklist: Ambrosia checklist entry
OregonFlora: Ambrosia information
E-Flora BC: Ambrosia atlas page
CalPhotos: Ambrosia photos
114 photographs:
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