Burke: Packera breweri vs. Packera subnuda

	Packera breweri	Packera subnuda
		alpine meadow butterweed, few-leaved groundsel
Habit		Glabrous, fibrous-rooted perennial from a short, slender rhizome, 5-30 cm. tall.
Leaves		Leaves alternate, small, the basal ones sub-rotund or broadly obovate with wavy margins, on long petioles, the blades up to 2.5 cm. long and 2 cm. wide; cauline leaves few and reduced, the stem sometimes naked.
Flowers		Heads usually solitary, the disk 8-15 mm. wide; involucre 5-8 mm. high, the bracts sometimes purplish-tipped; rays 7-14 mm. long, yellow.
Fruits		Achene

	Packera breweri	Packera subnuda
Identification notes		A Packera with a large, single head growing in a wet alpine meadow is probably this species.
Flowering time		July-September.
Habitat		Wet meadows in the subalpine and alpine.
Distribution	[WildflowerSearch map] [BONAP county map]	Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana, and Wyoming. [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. paupercula, P. porteri, P. pseudaurea, P. streptanthifolia
Subordinate taxa		P. subnuda var. 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, OR, 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 subnuda

alpine meadow butterweed, few-leaved groundsel

Habit

Glabrous, fibrous-rooted perennial from a short, slender rhizome, 5-30 cm. tall.

Leaves

Leaves alternate, small, the basal ones sub-rotund or broadly obovate with wavy margins, on long petioles, the blades up to 2.5 cm. long and 2 cm. wide;

cauline leaves few and reduced, the stem sometimes naked.

Flowers

Heads usually solitary, the disk 8-15 mm. wide;

involucre 5-8 mm. high, the bracts sometimes purplish-tipped;

rays 7-14 mm. long, yellow.

Fruits

Achene