Page author: David Giblin
Sonchus arvensis ssp. uliginosus
field sow-thistle, marsh sow-thistle, wet ground sow-thistle
WTU specimens
Other herbaria

Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across most of North America to the Atlantic Coast.

Habitat: Balds, prairies, forest edge, stream banks, roadsides, fields, and other disturbed open areas generally at low elevations, often where moist.

Flowers: July-October

Origin: Introduced from Europe

Conservation Status: Not of concern

Description:

[none provided]


Accepted Name:
Sonchus arvensis L. ssp. uliginosus (M. Bieb.) Nyman
Publication: Consp. Fl. Eur. 433. 1879.

Synonyms & Misapplications:
Sonchus arvensis L. var. glabrescens G√ľnther
Sonchus uliginosus M. Bieb. [HC]
Additional Resources:

PNW Herbaria: Specimen records of Sonchus arvensis ssp. uliginosus in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Sonchus arvensis ssp. uliginosus checklist entry.

E-Flora BC: Sonchus arvensis ssp. uliginosus atlas page.

CalPhotos: Sonchus arvensis ssp. uliginosus photos.

USDA Plants: Sonchus arvensis ssp. uliginosus information.

16 photographs:
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