Burke: Pseudognaphalium luteoalbum vs. Pseudognaphalium macounii

	Pseudognaphalium luteoalbum	Pseudognaphalium macounii
	weedy cudweed, red-tip rabbit-tobacco, jersey rabbit tobacco	sticky cudweed, winded cudweed, Macoun's rabbit-tobacco, Macoun's rabbit tobacco
Habit	Woolly annual, simple or moderately branched, up to 4 dm. tall.
Leaves	Lowermost leaves oblanceolate, up to 4.5 cm. long and 1 cm. wide, the others progressively reduced upward.
Flowers	Heads in several tight clusters, in a close inflorescence; involucre 3.5-5 mm. high, woolly only at the base, its bracts translucent, light brown; corollas all tubular, whitish, the outer slender and pistillate, the few inner coarser and perfect; pappus of capillary bristles united at base.
Fruits	Achenes small, nerveless.

	Pseudognaphalium luteoalbum	Pseudognaphalium macounii
Flowering time	June-October	June-August
Habitat	Roadsides, fields, wastelots, and other disturbed areas at low elevations.	Dry, open areas from low to middle elevations.
Distribution	Occurring in scattered locations on both sides of the Cascades crest in Washington; Washington to California, east across the southern U.S. to Florida, also in New York. [WildflowerSearch map]	Occurring chiefly east of the Cascades crest in Washington; southern British Columbia to California, east across most of North America to the Atlantic Coast. [WildflowerSearch map] [BONAP county map]
Origin	Introduced from Eurasia	Native
Conservation status	Not of concern	Not of concern
Sibling taxa	P. californicum, P. macounii, P. stramineum, P. thermale	P. californicum, P. luteoalbum, P. stramineum, P. thermale
Web links	Local floras: BC, CA, OR, WA 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, CA, OR, WA 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

Pseudognaphalium luteoalbum

Pseudognaphalium macounii

weedy cudweed, red-tip rabbit-tobacco, jersey rabbit tobacco

sticky cudweed, winded cudweed, Macoun's rabbit-tobacco, Macoun's rabbit tobacco

Habit

Woolly annual, simple or moderately branched, up to 4 dm. tall.

Leaves

Lowermost leaves oblanceolate, up to 4.5 cm. long and 1 cm. wide, the others progressively reduced upward.

Flowers

Heads in several tight clusters, in a close inflorescence;

involucre 3.5-5 mm. high, woolly only at the base, its bracts translucent, light brown;

corollas all tubular, whitish, the outer slender and pistillate, the few inner coarser and perfect;

pappus of capillary bristles united at base.

Fruits

Achenes small, nerveless.

Pseudognaphalium luteoalbum

Pseudognaphalium macounii

Flowering time

June-October

June-August

Habitat

Roadsides, fields, wastelots, and other disturbed areas at low elevations.

Dry, open areas from low to middle elevations.

Distribution

Occurring in scattered locations on both sides of the Cascades crest in Washington; Washington to California, east across the southern U.S. to Florida, also in New York.

[WildflowerSearch map]

Occurring chiefly east of the Cascades crest in Washington; southern British Columbia to California, east across most of North America to the Atlantic Coast.

[WildflowerSearch map]

[BONAP county map]

Origin

Introduced from Eurasia

Native

Conservation status

Not of concern

Sibling taxa

P. californicum, P. macounii, P. stramineum, P. thermale

P. californicum, P. luteoalbum, P. stramineum, P. thermale

Web links