Burke: Packera breweri vs. Packera paupercula

	Packera breweri	Packera paupercula
		Canadian butterweed, balsam groundsel
Habit		Fibrous-rooted perennial from a short, simple crown, the stem 1-5 dm. tall, lightly woolly when young, soon glabrate except for the leaf axils.
Leaves		Basal leaves long-petiolate, the blade oblanceolate to elliptic, sub-entire to serrate with rounded teeth; cauline leave alternate, more or less pinnatifid, the lower petiolate and as large as the basal, reduced upward and becoming sessile, all thin and not succulent.
Flowers		Heads several, the disk 5-12 mm. wide; involucre 6-9 mm. high; rays yellow, 5-10 mm. long.
Fruits		Achene

	Packera breweri	Packera paupercula
Flowering time		May-October
Habitat		Meadows, moist cilffs and woods, from the foothills to middle elevations in the mountains.
Distribution	[WildflowerSearch map] [BONAP county map]	Occurring east of the Cascades crest in Washington British Columbia to Washington, east to the Rocky Mountains, northern Great Plains, and eastern North America. [WildflowerSearch map] [BONAP county map]
Origin		Native
Conservation status		Not of concern
Sibling taxa	P. bolanderi, P. cana, P. contermina, P. flettii, P. indecora, P. macounii, P. pauciflora, P. paupercula, P. porteri, P. pseudaurea, P. streptanthifolia, P. subnuda	P. bolanderi, P. cana, P. contermina, P. flettii, P. indecora, P. macounii, P. pauciflora, P. porteri, P. pseudaurea, P. streptanthifolia, P. subnuda
Web links	Local floras: CA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: BC, WA Local Web sites: Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Packera breweri

Packera paupercula

Canadian butterweed, balsam groundsel

Habit

Fibrous-rooted perennial from a short, simple crown, the stem 1-5 dm. tall, lightly woolly when young, soon glabrate except for the leaf axils.

Leaves

Basal leaves long-petiolate, the blade oblanceolate to elliptic, sub-entire to serrate with rounded teeth;

cauline leave alternate, more or less pinnatifid, the lower petiolate and as large as the basal, reduced upward and becoming sessile, all thin and not succulent.

Flowers

Heads several, the disk 5-12 mm. wide;

involucre 6-9 mm. high;

rays yellow, 5-10 mm. long.

Fruits

Achene

Packera breweri

Packera paupercula

Flowering time

May-October

Habitat

Meadows, moist cilffs and woods, from the foothills to middle elevations in the mountains.

Distribution

[WildflowerSearch map]

[BONAP county map]

Occurring east of the Cascades crest in Washington British Columbia to Washington, east to the Rocky Mountains, northern Great Plains, and eastern North America.

[WildflowerSearch map]

[BONAP county map]

Origin

Native

Conservation status

Not of concern

Sibling taxa