Burke: Antennaria rosea vs. Antennaria luzuloides

	Antennaria rosea	Antennaria luzuloides
		silvery-brown pussytoes, woodrush 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.	Thinly white-woolly perennial with stems clustered from a short, branched woody base, 1.5-7 dm. 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.	Basal leaves erect, linear-oblanceolate, tapering to a short petiole, often several-nerved, 4-8 cm. long and 2-8 mm. wide; cauline leaves linear, progressively 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 numerous in a flat-topped or sub-capitate inflorescence; staminate and pistillate involucres similar, 4-5 mm. high, glabrous to the base; lower portion of the bracts pale greenish-brown, scarious, the upper portion more whitish.
Fruits	Achene.	Achene terete.

	Antennaria rosea	Antennaria luzuloides
Identification notes		Separate from the similar A. anaphaloides by the involucre bracts; A. luzuloides is scarious throughout, while A. anaphaloides is densely pubescent on the lower portion.
Flowering time	June-August	May-July
Habitat	Dry to moist habitats, including meadows, ponderosa pine forest openings, rocky slopes, and floodplains from the lowlands to the alpine.	Sagebrush grasslands at low elevations to dry, rocky slopes at middle elevations in the mountains.
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 the Rocky Mountains and South Dakota. [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. media, A. microphylla, A. monocephala, A. parvifolia, A. pulcherrima, A. racemosa, A. stenophylla, A. umbrinella
Subordinate taxa		A. luzuloides ssp. luzuloides
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 luzuloides

silvery-brown pussytoes, woodrush 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.

Thinly white-woolly perennial with stems clustered from a short, branched woody base, 1.5-7 dm. 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.

Basal leaves erect, linear-oblanceolate, tapering to a short petiole, often several-nerved, 4-8 cm. long and 2-8 mm. wide;

cauline leaves linear, progressively 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 numerous in a flat-topped or sub-capitate inflorescence; staminate and pistillate involucres similar, 4-5 mm. high, glabrous to the base;

lower portion of the bracts pale greenish-brown, scarious, the upper portion more whitish.

Fruits

Achene.

Achene terete.

Antennaria luzuloides

Identification notes

Separate from the similar A. anaphaloides by the involucre bracts; A. luzuloides is scarious throughout, while A. anaphaloides is densely pubescent on the lower portion.

Flowering time

June-August

May-July

Habitat

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

Sagebrush grasslands at low elevations to dry, rocky slopes at middle elevations in the mountains.

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]