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

Claytonia parviflora Douglas ex Hook.
Streambank Spring Beauty (streambank springbeauty)
Montiaceae (Purslane family)
(Previously in Portulacaceae)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #24544)

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Distribution of Claytonia parviflora
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Claytonia parviflora ssp. parviflora

Species Information

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Annual herb from a slender taproot; stems ascending to erect, simple, several, 3-35 cm tall.
Basal leaves linear to narrowly oblanceolate, the blades 1-18 cm long, tapered gradually to the stalk; stem leaves paired, opposite, fused on both margins, forming a disk less than 10 cm wide.
Inflorescence of whorled racemes with 3-40 flowers on stalks 1-10 cm long or unstalked, with one bract subtending the lowest flower; petals white or pinkish, 2-6 mm long; sepals 1.5-4 mm long.
Capsules; seeds 3, round to egg-shaped, black, shiny, smooth (at 20x magnification), the appendages white, fleshy, 1-2.3 mm long.
Claytonia parviflora (and C. rubra) were formerly treated in the Pacific Northwest by Hitchcock et al. (1964) and in BC by Douglas et al. (1990) as part of the natural variation of the C. perfoliata or Montia perfoliata complex. Recent studies by Miller (1978) and Chambers (1993) indicate that they should be treated as separate species.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to mesic vernal pools, rock outcrops, meadows and forests in the lowland and montane zones; infrequent in SW and SC BC; S to MT, CA and MX.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Claytonia parviflora

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




Elevation (metres) 260 268 275
Slope Gradient (%) 0 18 42
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
140 144 150
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 2 5
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: CWH(3)


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

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General References