Antennaria anaphaloides Rydb.
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TAXONOMY
 
Family: Asteraceae or Compositae
Genus: Antennaria
 
Species Synonyms: Antennaria pulcherrima ssp. anaphaloides (Rydb.) W.A. Weber
Antennaria pulcherrima var. anaphaloides (Rydb.) G.W. Douglas
Common Names: pearly pussytoes
tall everlasting
tall pussytoes
 
DISTRIBUTION
 
Canada: British Columbia – southwestern Saskatchewan
Saskatchewan: southwestern Saskatchewan; Cypress Hills
Ecoregion: Cypress Upland
 
HABITAT
 
Saskatchewan: loamy soil in open fescue prairie
Associated Species: brome, mountain death camas, nodding onion, northern bedstraw, Pacific anemone, plains rough fescue
 
RARITY STATUS
 
Provincial Status According
to Harms (2003):
Threatened
Nature Conservancy Status:
G5 S2
Saskatchewan Species at
Risk Status:
None
COSEWIC Status:
None
 
Pearly pussytoes is imperiled because of rarity. This plant is located in one subregion of the province and most local populations are small. In addition, this plant grows in a fragile habitat.
 
SPECIES DESCRIPTION
 
Height: 20 – 60 cm tall
Roots: dark brown rhizome
Stems: base compact, branched woody; stems solitary to several, runners absent, not mat forming, white woolly
Leaves: basal and on the stem; basal leaves long-stalked, 8 – 15 cm long, 5 – 20 mm wide, up to 8 times as long as broad or more, lance-shaped to inversely lance-shaped, tip tapered, base tapering to stalk, upper surface with 3 – 4 conspicuous veins, light woolly; stem leaves reduced upwards, sessile and linear towards the top
Inflorescence: open cluster; flower stalks long; bracts in several unequal series, to 8 mm high, oval, dry and membranous, white, may have a brownish-black spot at base; male and female flowers on separate plants
Flowers: several per head; male flowers with club-shaped pappus; petals white
Fruits: achene 1 – 1.2 mm long, olive, hairless, grooved; pappus present
 
ANAPHALIS VS ANTENNARIA KEY FOR SPECIES FOUND IN SASKATCHEWAN
Only one species of Anaphalis grows in Saskatchewan, but Anaphalis is very similar in appearance to Antennaria.
   
1 May have runners; basal leaves conspicuous, may be in a rosette, stem leaves few and reduced upwards, bracts white to yellow-tinged to rose
Antennaria
1 Runners absent; basal leaves deciduous, stem leaves many and not markedly reduced upwards, bracts pearly white
Anaphalis
   
ANTENNARIA KEY FOR SPECIES FOUND IN SASKATCHEWAN  
   
1 Heads solitary
A. dimorpha
1 Heads more than one
2
 
2 Runners absent, not mat forming; basal leaves erect, commonly >8 x as long as broad, acute to short-tapered at tip, not rosette forming
3
2 Usually with numerous leafy runners (though may be absent in some species if densely tufted), mat forming; basal leaves spreading and forming rosettes
4
 
3 Bracts in 3 – 4 unequal series, white or whitish, tapered to obtuse
A. anaphaloides
3 Bracts in 6 – 7 series, deep brown to black, at least inner ones gradually tapered to the tip
A. pulcherrima
 
4 Rosette leaves to over 5 mm wide; heads 2 or more; achenes bumpy, at least when young
5
4 Rosette leaves < 5 mm broad; heads several; achenes not bumpy
6
 
5 Upper leaf surface distinctly less hairy than lower, becoming hairless with age
A. neglecta*
5 Upper leaf surface nearly as densely hairy as lower, hairless only in extreme age
A. parvifolia**
 
6 Bracts with dark spot at the base
A. corymbosa
6 Bracts without dark spot at base
7
 
7 Bracts pink to rose
A. rosea
7 Bracts white, brown, yellow-brown or green at base
8
 
8 Young flowering heads not nodding, bracts brown, yellow-brown or green at base, dry and membranous parts brown or whitish
A. umbrinella
8 Younger flowering heads nodding, inner bracts white-brown
A. microphylla
   
*there are three varieties in Saskatchewan, not addressed in this key  
** once considered A. aprica if: bracts 8 – 13 mm high; stem leaves 5 – 7, and A. parvifolia if: bracts 4 – 7 mm high; stem leaves 8 – 12