Senecio
butterweed, groundsel, ragwort
Specimens
Photos
Origin: Native
Conservation Status: Not of concern
Description:
[none provided]
Accepted Name:
Senecio
Publication: Sp. Pl. 2: 866. 1753; Gen. Pl. ed. 5, 373. 1754.
Publication: Sp. Pl. 2: 866. 1753; Gen. Pl. ed. 5, 373. 1754.
Synonyms & Misapplications:
(none provided)
Species in Senecio:
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Senecio elmeri – Elmer's ragwort
Occurring on both sides of the Cascades crest in central and northern Washington; British Columbia to central Washington. -
Senecio fremontii – dwarf mountain butterweed Occurring on both sides of the Cascades crest and in the Olympic Mountains in Washington; British Columbia to California, east to Alberta, Montana, Wyoming, and Utah.
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var. fremontii – dwarf mountain groundsel Occurring on both sides of the Cascades crest and in the Olympic Mountains in Washington; British Columbia to California, east to Alberta, Montana, Wyoming, and Utah.
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Senecio hydrophiloides – sweet marsh butterweed, stout meadow groundsel Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana, Wyoming, and Utah.
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Senecio hydrophilus – alkali marsh butterweed, water groundsel, alkali marsh ragwort Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains and northern Great Plains.
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Senecio integerrimus – one-stemmed butterweed, western groundsel Occurring chiefly east of the Cascades crest in Washington, where widely distributed; British Columbia to California, east to the Great Plains and Great Lakes region.
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var. exaltatus – one-stemmed butterweed, lambs-tongue groundsel, tall western groundsel Occurring east of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
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var. ochroleucus – white western groundsel Occurring chiefly east of the Cascades crest and in the Columbia River Gorge in Washington; British Columbia to California, east to Montana.
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Senecio lugens – black-tipped groundsel Occurring on both sides of the Cascades crest in Washington; Alaska to Washington, east to the northern Rocky Mountains.
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Senecio neowebsteri – Olympic Mountain ragwort Occurring west of the Cascades crest, where endemic to the Olympic Mountains of Washington.
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Senecio serra – tall butterweed, butterweed groundsel Occurring chiefly east of the Cascades crest in Washington; Washington to California, east to Montana, Wyoming, and Colorado.
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var. serra – tall butterweed, butterweed groundsel Occurring chiefly east of the Cascades crest in Washington; Washington to California, east to Montana, Wyoming, and Utah.
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Senecio sylvaticus – wood groundsel, woodland groundsel, woodland ragwort Occurring chiefly west of the Cascades crest in Washington; British Columbia to California, also in eastern North America.
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Senecio triangularis – arrowleaf groundsel, arrowleaf ragwort Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains.
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var. triangularis – arrowleaf groundsel, arrowleaf ragwort Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains.
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Senecio viscosus – sticky ragwort Occurring west of the Cascades crest in Washington; British Columbia to Washington, east across Canada to the Atlantic Coast.
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Senecio vulgaris – common groundsel, old man in the spring Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.
Additional Resources:
PNW Herbaria: Specimen records of Senecio in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Senecio checklist entry.
OregonFlora: Senecio information.
E-Flora BC: Senecio atlas page.
CalPhotos: Senecio photos.
USDA Plants: Senecio information.
470 photographs:
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