OregonFlora: Antennaria rosea vs. Antennaria racemosa

	Antennaria microphylla (synonym of Antennaria rosea)	Antennaria racemosa
	littleleaf pussytoes, rosy pussytoes	racemose pussytoes
Habit	Herbs dioecious or gynoecious; stolons herbaceous, horizontal to ascending, 1–10 cm.	Herbs dioecious; stolons 3–8 cm.
Stems	5–30 cm, rarely stipitate glandular distally.	12–50 cm, distally stipitate-glandular.
Basal leaves	usually forming rosettes, spatulate to oblanceolate, 8–40 × 2–10 mm, 1-veined; tips mucronate; surfaces usually gray-pubescent, adaxially sometimes green and glabrous.	usually forming rosettes, elliptic to oblong, 30–100 × 10–40 mm, prominently 3-veined; tips mucronate; surfaces abaxially white- or gray-tomentose, adaxially glabrous.
Cauline leaves	linear, 5–36 mm; tips acute to subulate, usually not flagged.	linear, 10–30 mm; tips acute to obtuse, not flagged.
Involucres	mostly glabrous to pubescent, staminate heads 4–8 mm, pistillate heads 4–10 mm.	mostly glabrous, staminate heads 4–8 mm, pistillate heads 7–9 mm.
Phyllaries	distally white to yellow, green, red, pink, gray, or rarely brown; tips rounded to acuminate.	distally light brown or white; tips acute to acuminate.
Fruits	0.7–1.5 mm, glabrous to papillate.	1–1.5 mm, glabrous to papillate.
Heads	3–20 per stem; in corymb-like arrays.	3–12 per stem; raceme- or panicle-like arrays.
2n	=28, 42, 56, 70.	=28.

	Antennaria microphylla	Antennaria racemosa
Distribution	[WildflowerSearch map] [BONAP county map]	[WildflowerSearch map] [BONAP county map]
Discussion	Rocky areas, meadows, forests, disturbed areas. Flowering May–Sep. 200–3000 m. BR, BW, Casc, CR, ECas, Lava, Owy, Sisk. CA, ID, NV, WA; north to AK, northeast to Greenland, east to NE, southeast to NM. Native. Here we take a more inclusive approach and include within this species plants that some floras treat as A. rosea.	Forests, rocky or grassy slopes. Flowering May–Aug. 100–2100 m. BW, Casc, CR, ECas, Sisk. CA, ID, WA. North to British Columbia, northeast to Alberta, east to WY. Native. Within the genus, A. racemosa is a very distinctive species with broad basal leaves that are adaxially glabrous and green, abaxially densely white-tomentose, and with a raceme- or panicle-like arrangement of heads.
Source	Flora of Oregon, volume 2, page 178 Katie Mitchell, Stephen Meyers	Flora of Oregon, volume 2, page 179 Katie Mitchell, Stephen Meyers
Sibling taxa	A. anaphaloides, A. argentea, A. corymbosa, A. dimorpha, A. flagellaris, A. geyeri, A. howellii, A. lanata, A. luzuloides, A. media, A. microphylla, A. pulvinata, A. racemosa, A. stenophylla, A. suffrutescens, A. umbrinella	A. anaphaloides, A. argentea, A. corymbosa, A. dimorpha, A. flagellaris, A. geyeri, A. howellii, A. lanata, A. luzuloides, A. media, A. microphylla, A. pulvinata, A. stenophylla, A. suffrutescens, A. umbrinella
Synonyms	Antennaria rosea, Antennaria rosea ssp. arida, Antennaria rosea ssp. confinis, Antennaria rosea ssp. rosea
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 racemosa

littleleaf pussytoes, rosy pussytoes

racemose pussytoes

Habit

Herbs dioecious or gynoecious; stolons herbaceous, horizontal to ascending, 1–10 cm.

Herbs dioecious; stolons 3–8 cm.

Stems

5–30 cm, rarely stipitate glandular distally.

12–50 cm, distally stipitate-glandular.

Basal leaves

usually forming rosettes, spatulate to oblanceolate, 8–40 × 2–10 mm, 1-veined;

tips mucronate;

surfaces usually gray-pubescent, adaxially sometimes green and glabrous.

usually forming rosettes, elliptic to oblong, 30–100 × 10–40 mm, prominently 3-veined;

tips mucronate;

surfaces abaxially white- or gray-tomentose, adaxially glabrous.

Cauline leaves

linear, 5–36 mm;

tips acute to subulate, usually not flagged.

linear, 10–30 mm;

tips acute to obtuse, not flagged.

Involucres

mostly glabrous to pubescent, staminate heads 4–8 mm, pistillate heads 4–10 mm.

mostly glabrous, staminate heads 4–8 mm, pistillate heads 7–9 mm.

Phyllaries

distally white to yellow, green, red, pink, gray, or rarely brown;

tips rounded to acuminate.

distally light brown or white;

tips acute to acuminate.

Fruits

0.7–1.5 mm, glabrous to papillate.

1–1.5 mm, glabrous to papillate.

Heads

3–20 per stem; in corymb-like arrays.

3–12 per stem; raceme- or panicle-like arrays.

=28, 42, 56, 70.

=28.

Antennaria racemosa

Distribution

[WildflowerSearch map]

[BONAP county map]

[WildflowerSearch map]

[BONAP county map]

Discussion

Rocky areas, meadows, forests, disturbed areas. Flowering May–Sep. 200–3000 m. BR, BW, Casc, CR, ECas, Lava, Owy, Sisk. CA, ID, NV, WA; north to AK, northeast to Greenland, east to NE, southeast to NM. Native.

Here we take a more inclusive approach and include within this species plants that some floras treat as A. rosea.

Forests, rocky or grassy slopes. Flowering May–Aug. 100–2100 m. BW, Casc, CR, ECas, Sisk. CA, ID, WA. North to British Columbia, northeast to Alberta, east to WY. Native.

Within the genus, A. racemosa is a very distinctive species with broad basal leaves that are adaxially glabrous and green, abaxially densely white-tomentose, and with a raceme- or panicle-like arrangement of heads.

Source

Flora of Oregon, volume 2, page 178
Katie Mitchell, Stephen Meyers

Flora of Oregon, volume 2, page 179
Katie Mitchell, Stephen Meyers

Sibling taxa