Heuchera parvifolia var. utahensis (Rydb.) Garrett
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TAXONOMY
 
Family: Saxifragaceae
Genus: Heuchera
 
Species Synonyms: none
Common Names: small alumroot
little-leaf alumroot
 
DISTRIBUTION
 
Canada: southeastern Alberta – southwestern Saskatchewan
Saskatchewan: southwestern Saskatchewan; Cypress Hills
Ecoregion: Cypress Upland
 
HABITAT
 
Saskatchewan: gravelly, grassy, or shrubby slopes and ridges
Associated Species: Danthonia intermedia, Festuca campestris, Geum triflorum
 
RARITY STATUS
 
Provincial Status According
to Harms (2003):
Endangered
Nature Conservancy Status: G5 S1
Saskatchewan Species at
Risk Status:
None
COSEWIC Status: None
 
Heuchera parvifolia var. utahensis is endangered because of extreme rarity in Saskatchewan. Although it is limited to the Cypress Hills region, it is usually locally numerous within limited areas. Possible threats have been identified for this species.
 
SPECIES DESCRIPTION
 
Height: 20 – 40 cm
Roots: rootstocks stout, scaly
Stems: caudex branched; flowering stems puberulent, glandular
Leaves: basal, stipulate, petiolate, 1 – 3 cm wide, round to cordate, glabrous above, glabrous or puberulent below, margin deeply cleft, lobes crenate
Inflorescence: panicle narrow and dense, elongating and expanding to 10 – 30 cm long, interrupted at maturity
Flowers: hypanthium saucer-shaped, ca. 2 mm long, glandular-puberulent; sepals 5, 2 – 3 mm long at anthesis; petals 5, minute, broadly elliptic to ovate, spreading, white or yellowish; stamens 5, very short, incurved; ovary covered by a glandular disc
Fruits: capsule
 
HEUCHERA KEY FOR SPECIES FOUND IN SASKATCHEWAN
 
1 Calyx 2 – 3 mm long; flowers white or yellowish; stamens very short, incurved
H. parviflora var. utahensis
1 Calyx 5 – 12 mm long; flowers pink; stamens more or less exserted
H. richardsonii