Page author: David Giblin
Packera pseudaurea
streambank butterweed
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

Description:
General:

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

Leaves:

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.

Flowers:

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]
Infraspecies:
var. pseudaurea – streambank butterweed
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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