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)

E-Flora BC Static Map
Distribution of Micranthes lyallii
Click here to view our NEW interactive map and legend
Details about map content are available here
Click on the map dots to view record details.

Species Information

General:
Perennial herb from well-developed rhizomes, often matted; flowering stems 4-30 cm tall.
Leaves:
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.
Flowers:
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.
Fruits:
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.
Notes:
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

Ecology

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

Minimum

Average

Maximum

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
Class
D
Number of field plots
 species was recorded in:
297
Modal BEC Zone Class
ESSF
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