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

Lewisia rediviva Pursh
bitterroot (bitter root)
Montiaceae (Purslane family)
(Previously in Portulacaceae)

Introduction to Vascular Plants

© Ian Gardiner  Email the photographer   (Photo ID #24193)

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Distribution of Lewisia rediviva
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Species Information

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General:
Perennial herb from a thick branched taproot and a short, simple or branched stem-base; stems spreading to erect, few, simple, 1-3 cm tall.
Leaves:
Basal leaves numerous, 1.5-5 cm long, linear to club-shaped, round in cross section, with a wide, transparent base, beginning to wither and dry by flowering time; stem leaves lacking.
Flowers:
Inflorescence of solitary flowers on stalks 0.5-1.5 cm long; floral bracts 5-6, whorled, linear, 0.5-1 cm long, chaffy; petals 12-18, white to deep pink, narrowly oblong, 1.8-3.5 cm long; sepals (4) 5-9, unequal, 10-25 mm long, stamens 30-50.
Fruits:
Capsules; seeds 6-20, rounded, dark brown, shiny, 2 mm long.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry grasslands, shrublands and open forests in the steppe and lower montane zones; locally frequent in SC BC, rare in SE BC; S to MT, CO, AZ and CA.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Lewisia rediviva

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) 332 671 1822
Slope Gradient (%) 0 17 80
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
5 193 330
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 2 7
Modal Nutrient Regime
Class
C
Number of field plots
 species was recorded in:
101
Modal BEC Zone Class
BG
All BEC Zones (# of stations/zone) species was recorded in: BG(45), ESSF(1), IDF(11), MS(2), PP(40)

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

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General References