Potentilla biflora Willd. ex Schltdl.
two-flowered cinquefoil (twoflower cinquefoil)
Rosaceae (Rose family)

Introduction to Vascular Plants

Photograph

© Ryan Batten     (Photo ID #23928)


Map

E-Flora BC Static Map

Distribution of Potentilla biflora
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Species Information

General:
Dwarf perennial herb from a branched stem-base covered with shiny brown remains of leaf-bases; stems densely tufted, ascending to erect, 4-15 cm tall.
Leaves:
All basal, several, long-stalked, palmately compound, 2-7 cm long; leaflets 3, oval in outline, 8-17 mm long, deeply divided to the base into 2 or 3 linear segments, green and sparsely long-hairy above, paler and sparsely hairy to nearly smooth beneath, the margins rolled under.
Flowers:
Inflorescence of 1 to 3 stalked terminal flowers; corollas yellow, saucer-shaped, the petals 5, heart-shaped, 5-10 mm long, notched at the tip; calyces often somewhat long-hairy, 5-lobed, the lobes narrowly egg-shaped, 3.5-6 mm long, alternating with 5 oblong bractlets about as long as the sepals; ovaries superior; stamens 20.
Fruits:
Achenes, numerous, clustered, lopsided-egg-shaped, 1.5-2 mm long.

SourceThe Illustrated Flora of British Columbia

Illustration

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Ecology

Ecological Framework for Potentilla biflora

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class

Avg

Min

Max

Elevation (metres)
1747 1415 2077
Slope Gradient (%)
26 4 64

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

228 140 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
2 1 4
Modal Nutrient Regime
Class
B
# of field plots
 species was recorded in:
11
Modal BEC Zone Class
BAFA

All BEC Zones (# of stations/zone) species was recorded in

BAFA(9), IMA(1), SWB(1)

Habitat and Range

Dry to mesic rocky slopes in the subalpine and alpine zones; rare in N BC; amphiberingian, N to AK and NT; Asia.

SourceThe Illustrated Flora of British Columbia