Page author: David Giblin
Packera pseudaurea
streambank butterweed
WTU images
WTU specimens
Other herbaria

Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to California, east to central Canada and midwestern U.S.

Habitat: Wet meadows, stream-banks and moist woodlands at moderate to mid-elevations in the mountains.

Flowers: June-August

Origin: Native

Conservation Status: Not of concern


Fibrous-rooted perennial from a short rhizome, essentially glabrous by flowering time, 3-7 dm. tall.


Leaves thin, the basal ones long-petiolate, the blades sharply toothed, ovate, cordate to truncate at the base, the cauline ones few, progressively reduced upward, becoming sessile, pinnatifid or incised toward their bases.


Heads several to many, the disk 8-13 mm. wide; involucre 5-8 mm. high; rays 6-10 mm. long, yellow.

Identification Notes:

The sub-cordate basal leaves that are sharply toothed but not otherwise divided is characteristic of this species.

Accepted Name:
Packera pseudaurea (Rydb.) W.A. Weber & Á. Löve
Publication: Phytologia. 49: 48. 1981.

Synonyms & Misapplications:
Senecio pseudaureus Rydb. [HC]
var. pseudaurea – streambank butterweed, falsegold groundsel
Additional Resources:

PNW Herbaria: Specimen records of Packera pseudaurea in the Consortium of Pacific Northwest Herbaria database.

WA Flora Checklist: Packera pseudaurea checklist entry.

E-Flora BC: Packera pseudaurea atlas page.

CalPhotos: Packera pseudaurea photos.

USDA Plants: Packera pseudaurea information.

24 photographs:
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