Phlox alyssifolia ssp. alyssifolia Greene
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TAXONOMY
 
Family: Polemoniaceae
Genus: Phlox
 
Species Synonyms: Phlox alyssifolia ssp. vera Wherry
Common Names: alyssumleaf phlox
blue phlox
 
DISTRIBUTION
 
Canada: southwestern Alberta, south-central Saskatchewan
Saskatchewan: southern Saskatchewan; Wood Mountain – Twelve Mile Lake – Big Muddy Lake
Ecoregion: Mixed Grassland
 
HABITAT
 
Saskatchewan: dry, eroded, stony, grassland ridge-slopes
Associated Species: elegant cinquefoil, field locoweed, needle-and-thread grass, plains milkvetch, streambank wheatgrass
 
RARITY STATUS
 
Provincial Status According
to Harms (2003):
Vulnerable
Nature Conservancy Status:
G5 N2 S1
Saskatchewan Species at
Risk Status:
None
COSEWIC Status:
Not at Risk
 
Alyssumleaf phlox is vulnerable because it is rare or uncommon in Saskatchewan. Possible threats have been identified for this species.
 
SPECIES DESCRIPTION
 
Height: 3 – 10 cm
Stems: base somewhat woody, nearly lying flat on the ground, branched
Leaves: 10 – 20 mm long, linear, thick; margins entire, white, hard, hairy, sharp-pointed
Inflorescence: flowers few
Flowers: sepals 7 – 8 mm long, glandular-hairy, lobes bristle-tipped; petals 15 – 20 mm long, much longer than sepals, pale blue or white
Fruits: capsule; seeds few
 
PHLOX KEY FOR SPECIES FOUND IN SASKATCHEWAN
 
1 Leaves narrowly triangular, less than 2 mm wide; petals 8 – 10 mm long, only slightly exceeding sepals
P. hoodii ssp. hoodii
1 Leaves linear, 2 – 4 mm wide; petals 15 – 20 mm long, greatly exceeding sepals
P. alyssifolia ssp. alyssifolia