Burke: Antennaria rosea vs. Antennaria flagellaris

	Antennaria rosea	Antennaria flagellaris
		stoloniferous pussytoes, whip pussytoes
Habit	Dioecious, mat-forming, stoloniferous perennial 5-40 cm. tall; stolons up to 10 cm. long, decumbent; upper surface of the stems with stalked glands, the hairs white or purple.	Dwarf, short-lived perennial with numerous naked stolons about 1.5 dm. long tipped with a tuft of tiny leaf buds, nearly prostrate.
Leaves	Leaves 1-nerved; upper surface of the leaves covered with silvery-white hairs; basal leaves spatulate or oblanceolate with a wedge-shaped base; cauline leaves linear, alternate.	Linear, 1-3 cm. long, up to 2 mm. wide.
Flowers	Heads several in a sub-capitate cyme; pistillate involucres 4-10 mm. long; scarious portion of the involucre bracts white, straw-colored or light yellow.	Heads solitary at the end of very short stems, staminate involucres 4-7 mm. high, the thin, scarious tips of the bracts brownish; pistillate involucres narrow, 7-13 mm. high, brown or reddish-tinged.
Fruits	Achene.	Terete achene

	Antennaria rosea	Antennaria flagellaris
Identification notes		No other Antennaria in our area has the long, hair-like, naked stolons.
Flowering time	June-August	April-July
Habitat	Dry to moist habitats, including meadows, ponderosa pine forest openings, rocky slopes, and floodplains from the lowlands to the alpine.	Sagebrush desert to dry, open areas at middle elevations, often in lithosol.
Distribution	Occurring on both sides of the Cascades crest in Washington, but more common east of the crest; Alaska to California, east to the Rocky Mountains and northern Great Plains, Great Lakes region, and eastern Canada. [WildflowerSearch map] [BONAP county map]	Occurring east of the Cascades crest in Washington; British Columbia to California, east to Idaho, Wyoming, South Dakota, and Nevada. [WildflowerSearch map] [BONAP county map]
Origin	Native	Native
Conservation status	Not of concern	Not of concern
Sibling taxa	A. alpina, A. anaphaloides, A. corymbosa, A. dimorpha, A. flagellaris, A. geyeri, A. howellii, A. lanata, A. luzuloides, A. media, A. microphylla, A. monocephala, A. parvifolia, A. pulcherrima, A. racemosa, A. stenophylla, A. umbrinella	A. alpina, A. anaphaloides, A. corymbosa, A. dimorpha, A. geyeri, A. howellii, A. lanata, A. luzuloides, A. media, A. microphylla, A. monocephala, A. parvifolia, A. pulcherrima, A. racemosa, A. stenophylla, A. umbrinella
Web links	Local floras: BC, CA, OR Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria, Turner Photog. 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, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Antennaria flagellaris

stoloniferous pussytoes, whip pussytoes

Habit

Dioecious, mat-forming, stoloniferous perennial 5-40 cm. tall; stolons up to 10 cm. long, decumbent; upper surface of the stems with stalked glands, the hairs white or purple.

Dwarf, short-lived perennial with numerous naked stolons about 1.5 dm. long tipped with a tuft of tiny leaf buds, nearly prostrate.

Leaves

Leaves 1-nerved;

upper surface of the leaves covered with silvery-white hairs;

basal leaves spatulate or oblanceolate with a wedge-shaped base;

cauline leaves linear, alternate.

Linear, 1-3 cm. long, up to 2 mm. wide.

Flowers

Heads several in a sub-capitate cyme; pistillate involucres 4-10 mm. long; scarious portion of the involucre bracts white, straw-colored or light yellow.

Heads solitary at the end of very short stems, staminate involucres 4-7 mm. high, the thin, scarious tips of the bracts brownish; pistillate involucres narrow, 7-13 mm. high, brown or reddish-tinged.

Fruits

Achene.

Terete achene

Antennaria flagellaris

Identification notes

No other Antennaria in our area has the long, hair-like, naked stolons.

Flowering time

June-August

April-July

Habitat

Dry to moist habitats, including meadows, ponderosa pine forest openings, rocky slopes, and floodplains from the lowlands to the alpine.

Sagebrush desert to dry, open areas at middle elevations, often in lithosol.

Distribution

Occurring on both sides of the Cascades crest in Washington, but more common east of the crest; Alaska to California, east to the Rocky Mountains and northern Great Plains, Great Lakes region, and eastern Canada.

[WildflowerSearch map]

[BONAP county map]