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

Micranthes lyallii (Engl.) Small
red-stemmed saxifrage (Lyall's saxifrage; redstem saxifrage)
Saxifragaceae (Saxifrage family)

Introduction to Vascular Plants

© Neil L. Jennings  Email the photographer   (Photo ID #10005)

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Distribution of Micranthes lyallii
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Species Information

Perennial herb from well-developed rhizomes, often matted; flowering stems 4-30 cm tall.
Basal leaves spoon-shaped or fan- to egg-shaped, 1-8 cm long, 0.3-5 cm wide, 7- to 17-toothed, the teeth 2-4 mm long, gradually tapered at base to slender stalks about length of blades, smooth, or sparsely brown soft-hairy above; stem leaves lacking or single, small and bract-like.
Inflorescence open, of up to 15 flowers, the flower stalks slender and usually bracted, the bracts linear, entire, the inflorescence, calyces and fruits often bright red; petals white, often aging pinkish, egg-shaped, 2.5-5 mm long, claw less than 0.5 mm long, deciduous; calyces lobed almost to base, free hypanthium absent, the lobes oblong-lanceolate, 2-4 mm long, sharply bent back; stamens 10.
Follicles, body 6-12 mm long, beaks slender, curved outward; seeds brownish, about 0.7 mm long, with several lengthwise rows of thick, scale-like pimples.
Hybridizes extensively with S. odontoloma in S BC.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to wet streambanks, seepage sites, meadows and gravelly slopes in the montane to alpine zones; frequent throughout all but extreme NE BC; var. hulteni - amphiberingian, N to AK, YT and SW NT, E Asia, var. lyallii - E to AB and S to MT, ID and WA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Micranthes lyallii

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) 760 1765 2675
Slope Gradient (%) 0 22 140
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
0 332 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 4 8
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(18), BAFA(50), BWBS(1), CMA(3), ESSF(157), ICH(4), IDF(1), IMA(10), MH(9), MS(13), SBS(4), SWB(14)

Synonyms and Alternate Names

Saxifraga lyallii Engl.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References