Burke: Antennaria rosea vs. Antennaria monocephala

	Antennaria rosea	Antennaria monocephala
		pygmy pussytoes, single-headed 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.	Perennials or subshrubs; dioecious or gynoecious; stems erect, 5-13 cm tall; stolons 2-4 cm in length.
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.
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.	Involucres staminate 5–7 mm, pistillate 5–8 mm, phyllaries distally brown, dark brown, black, or olivaceous; staminate corollas 2.5–3.5 mm, white, yellow, or red, narrowly funnelform or tubular (lobes usually 5, erect to recurved); pistillate corollas 3.5–4 mm, white, yellow, or red, narrowly tubular to filiform; receptacles flat to convex or ovoid, foveolate, epaleate; ray florets 0; disc florets mostly 20–100+; pappi: staminate 3–4 mm (none in gynoecious populations).
Fruit(s)	Achene.	Cypselae 1–1.3 mm tall, often glabrous, usually papillate.

	Antennaria rosea	Antennaria monocephala
Flowering time	June-August	July-September
Habitat	Dry to moist habitats, including meadows, ponderosa pine forest openings, rocky slopes, and floodplains from the lowlands to the alpine.	Alpine meadows, ridges, and rocky outcroppings.
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]	Reported from the North Cascades in Washington; Alaska to British Columbia, east to Alberta, Montana, and Wyoming; also in the Russian Far East. [WildflowerSearch map] [BONAP county map]
Origin	Native	Native
Conservation status	Not of concern	Review Group 1 in Washington (WANHP)
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. 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, 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

Antennaria monocephala

pygmy pussytoes, single-headed 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.

Perennials or subshrubs; dioecious or gynoecious; stems erect, 5-13 cm tall; stolons 2-4 cm in length.

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.

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.

Involucres staminate 5–7 mm, pistillate 5–8 mm, phyllaries distally brown, dark brown, black, or olivaceous; staminate corollas 2.5–3.5 mm, white, yellow, or red, narrowly funnelform or tubular (lobes usually 5, erect to recurved); pistillate corollas 3.5–4 mm, white, yellow, or red, narrowly tubular to filiform;

receptacles flat to convex or ovoid, foveolate, epaleate; ray florets 0;

disc florets mostly 20–100+;

pappi: staminate 3–4 mm (none in gynoecious populations).

Fruit(s)

Achene.

Cypselae 1–1.3 mm tall, often glabrous, usually papillate.

Antennaria rosea

Antennaria monocephala

Flowering time

June-August

July-September

Habitat

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

Alpine meadows, ridges, and rocky outcroppings.

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]