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

Micranthes rufidula
rusty-haired saxifrage
Saxifragaceae (Saxifrage family)

Introduction to Vascular Plants

© Jim Riley  Email the photographer   (Photo ID #52408)

E-Flora BC Static Map
Distribution of Micranthes rufidula
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Species Information

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Perennial herb from stem-bases with short rhizomes or bulblets; flowering stem 1, 10-20 cm tall, glandular-hairy.
All basal, egg-shaped to occasionally diamond-shaped, 4-10 cm long, 1-3 cm wide, coarsely and regularly toothed with 15 to 30 teeth, wedge-shaped to blunt at base, fringed, usually densely rusty-woolly below, stalks 4-8 cm long.
Inflorescence terminal, usually open, of several clusters of flowers, flat-topped; petals white, pink or green, 1.5-3.5 mm long, egg-shaped, clawed, deciduous; calyces joined to the lower portion of the ovary, free hypanthium present, the lobes egg-shaped, 1-2.5 mm long, spreading, reddish-hairy; stamens 10.
Follicles, 3-6 mm long, greenish to reddish-purple; seeds brownish, about 0.7 mm long, wrinkled lengthwise.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to dry rock outcrops in the lowland to alpine zones; frequent on Vancouver Island and the Gulf Islands, rare on the adjacent mainland; S to WA, OR and CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Micranthes rufidula

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) 2014 2154 2240
Slope Gradient (%) 20 44 85
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
133 186 350
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 1 4
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: AT(1), ESSF(5), IMA(1)

Synonyms and Alternate Names

Saxifraga rufidula (Small) Macoun

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References