E-Flora BC: Electronic Atlas of the Flora of British Columbia

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

Introduction to Vascular Plants

© Ryan Batten  Email the photographer   (Photo ID #23928)

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Distribution of Potentilla biflora
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Species Information

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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.

Source: The Illustrated Flora of British Columbia

Habitat / Range

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

Source: The Illustrated Flora of British Columbia

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

Minimum

Average

Maximum

Elevation (metres) 1415 1747 2077
Slope Gradient (%) 4 26 64
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
140 228 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 2 4
Modal Nutrient Regime
Class
B
Number 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)

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References