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

Micranthes tolmiei
Tolmie's saxifrage
Saxifragaceae (Saxifrage family)

Introduction to Vascular Plants

© Virginia Skilton  Email the photographer   (Photo ID #4403)

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

Species Information

Click on the image below to view an expanded illustration for this species.



General:
Perennial herb from slender, woody stem-bases; flowering stems 3-8 cm tall, smooth or purplish glandular-hairy, leafless or with 1 to 3 leaves, many sterile leafy branches.
Leaves:
Basal leaves few, if any; stem leaves numerous below, alternate, usually crowded, persistent for years, pear- to spoon-shaped or oblanceolate, 3-10 mm long, entire, fleshy, smooth or bases fringed.
Flowers:
Inflorescence of terminal, single flowers or clusters of up to 4, lower branches often with leaf-like bractlets; petals white, 2.5-5 mm long, elliptic egg-shaped to broadly oblanceolate, clawed or not; calyces saucer-shaped, joined to the lower portion of the ovary, free hypanthium absent, smooth, purple-tinged, the lobes oval to oblong egg-shaped, 2-3 mm long, spreading; stamens 10.
Fruits:
Capsules, 8-12 mm long, often purplish-mottled; seeds light brown, about 0.8 mm long.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist rock outcrops, streambanks, snowbed sites and scree slopes in the upper subalpine and alpine zones; frequent in the Coast-Cascade Mountains N to 57degreeN and Vancouver Island, rare on the Queen Charlotte Islands and in E BC; N to SE AK and S toMT, ID, NV and CA.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Micranthes tolmiei

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) 180 1728 2480
Slope Gradient (%) 0 17 70
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
0 47 355
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 4 8
Modal Nutrient Regime
Class
B
Number of field plots
 species was recorded in:
63
Modal BEC Zone Class
CMA
All BEC Zones (# of stations/zone) species was recorded in: AT(10), BAFA(17), CMA(24), ESSF(2), IMA(1), MH(8)

Synonyms and Alternate Names

Saxifraga tolmiei Torr. & A. Gray

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References