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

Introduction to Vascular Plants


© Neil L. Jennings     (Photo ID #10005)


E-Flora BC Static Map

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.

SourceThe 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)
1765 760 2675
Slope Gradient (%)
22 0 140

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

332 0 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
4 0 8
Modal Nutrient Regime
# 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)

Habitat and 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.

SourceThe Illustrated Flora of British Columbia


Synonyms and Alternate Names:
Saxifraga lyallii Engl.