Packera
butterweed, groundsel
12 species
3 subspecies and varieties
Show only taxa with photos
Order by:
Scientific name
Common name
Display as:
Packera bolanderiBolander's groundsel
Distribution: Along the coast from the estuary of the Columbia River to California.
Habitat: Bluffs, woodlands and beaches.
Origin: Native
Flowers: June-July
var. harfordii – Harford's ragwort
Packera canawoolly groundsel
Distribution: Occurring east of the Cascades crest in Washington; British Columbia south to California, east to Saskatchewan and Nebraska.
Habitat: Dry, open, often rocky places, from the foothills to above timberline.
Origin: Native
Flowers: May-August
Packera conterminadwarf arctic butterweed
Origin: Native
Packera flettiiFlett's groundsel
Distribution: From the foothills to the tops of the Olympic Mountains in Washington, and also at high elevations in the Cascades in the vicinity of Mount Rainier.
Habitat: Open, rocky places, especilly on talus slopes.
Origin: Native
Flowers: June - August
Packera indecorarayless mountain butterweed, elegant groundsel, rayless mountain groundsel
Distribution: Alaska to Washington, east to Montana
Habitat: Uncommon in moist woods and on stream banks, moderate elevations in the mountains
Origin: Native
Flowers: July - August
Packera macouniiPuget butterweed, long rayed groundsel, Macoun's groundsel, Siskiyou Mountain ragwort
Distribution: West of the Cascades, British Columbia to southern Oregon, mostly in the Puget Trough.
Habitat: Open woods and dry, open places.
Origin: Native
Flowers: May - July
Packera pauciflorarayless alpine butterweed, rayless alpine groundsel
Distribution: Alaska, east across Canada to Labrador, south to northern Washington and Idaho.
Habitat: Alpine and sub-alpine meadows and moist cliffs.
Origin: Native
Flowers: July - August
Packera pauperculaCanadian butterweed, balsam groundsel
Distribution: Occurring east of the Cascades in Washington; British Columbia south to Oregon and New Mexico, east to Labrador and Virginia.
Habitat: Meadows, moist cilffs and woods, foothills to moderate elevations in the mountains.
Origin: Native
Flowers: May-October
Packera porteriPorter's groundsel
Origin: Native
Packera pseudaureastreambank butterweed
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.
Origin: Native
Flowers: June-August
var. pseudaurea – streambank butterweed, falsegold groundsel
Packera streptanthifoliaRocky Mountain butterweed, cleftleaf groundsel, Rocky Mountain groundsel
Distribution: Alaska to California, east to Colorado
Habitat: Moist to moderately dry open areas and woods, mid- to high elevations in the mountains
Origin: Native
Packera subnudaalpine meadow butterweed, few-leaved groundsel
Distribution: Occurring in the Cascade Mountains of Washington; Washington south to California, east to Montana and Wyoming.
Habitat: Alpine and subalpine wet meadows.
Origin: Native
Flowers: July-September.
var. subnuda – cleftleaf groundsel