Burke: Antennaria rosea vs. Antennaria stenophylla

	Antennaria rosea	Antennaria stenophylla
		narrowleaved 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.	Perennial from a short, woody base, the stems clustered, 3-15 cm. tall.
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.	All linear and silky pubescent, the basal ones 2-8 cm. long and 1-2 mm. wide, the cauline ones numerous and well developed, gradually reduced upward.
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 several in a sub-capitate inflorescence only 8-15 mm. wide; pistillate and staminate involucres similar, 4-6 mm. high, glabrous to the base, the bracts scarious throughout, light to dark brown.
Fruits	Achene.	Achene terete

	Antennaria rosea	Antennaria stenophylla
Identification notes		Separate from Antennaria luzuloides by the narrower leaves, shorter stems and darker involucre bracts.
Flowering time	June-August	April-June
Habitat	Dry to moist habitats, including meadows, ponderosa pine forest openings, rocky slopes, and floodplains from the lowlands to the alpine.	Rocky slopes, flats, lithosol areas, and dry grasslands in sagebrush desert.
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; Washington to Nevada, east to central Idaho. [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. flagellaris, A. geyeri, A. howellii, A. lanata, A. luzuloides, A. media, A. microphylla, A. monocephala, A. parvifolia, A. pulcherrima, A. racemosa, 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: OR, WA Local Web sites: 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 stenophylla

narrowleaved 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.

Perennial from a short, woody base, the stems clustered, 3-15 cm. tall.

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.

All linear and silky pubescent, the basal ones 2-8 cm. long and 1-2 mm. wide, the cauline ones numerous and well developed, gradually reduced upward.

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 several in a sub-capitate inflorescence only 8-15 mm. wide; pistillate and staminate involucres similar, 4-6 mm. high, glabrous to the base, the bracts scarious throughout, light to dark brown.

Fruits

Achene.

Achene terete

Antennaria stenophylla

Identification notes

Separate from Antennaria luzuloides by the narrower leaves, shorter stems and darker involucre bracts.

Flowering time

June-August

April-June

Habitat

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

Rocky slopes, flats, lithosol areas, and dry grasslands in sagebrush desert.

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]