Page authors: Don Knoke, David Giblin
Packera macounii
Puget butterweed, long-rayed groundsel, Macoun's groundsel, Siskiyou Mountain ragwort

Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California.

Habitat: Open woods and dry, open places at low elevations.

Flowers: May-July

Origin: Native

Conservation Status: Threatened in Washington (WANHP)


Several-stemmed, robust perennial from a taproot, 2-7 dm. tall, thinly white-woolly throughout.


Basal leaves more or less tufted, narrowly oblanceolate, the blade 1-5 cm. long and 3-7 mm. wide, entire to sub-pinnately lobed, petiolate; other leaves few, stongly reduced upward, becoming bract-like.


Heads several in an open, somewhat flat-topped inflorescence; involucre 6-10 mm. high; rays 6-13 mm. long, yellow.



Accepted Name:
Packera macounii (Greene) W.A. Weber & Á. Löve
Publication: Phytologia. 49: 47. 1981.

Synonyms & Misapplications:
Senecio macounii Greene [HC]
Additional Resources:

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

WA Flora Checklist: Packera macounii checklist entry.

E-Flora BC: Packera macounii atlas page.

CalPhotos: Packera macounii photos.

USDA Plants: Packera macounii information.

12 photographs:
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