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

Mitella caulescens Nutt.
leafy mitrewort (slightstemmed miterwort)
Saxifragaceae (Saxifrage family)

Introduction to Vascular Plants

© Ryan Batten  Email the photographer   (Photo ID #66937)

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Distribution of Mitella caulescens
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Species Information

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Perennial herb from slender rhizomes; stems erect, 20-40 cm tall, glandular-hairy, sparsely leafy.
Basal leaves heart-shaped, 2-7 cm wide, usually 5-lobed about 1/4 to 1/3 their length, sharp-toothed, sparsely coarse-hairy, at least above, long-stalked; stem leaves 1 to 3, similar to the basal but much reduced.
Inflorescence a loosely flowered spike-like cluster of up to 25 flowers, blossoming from top downward, the flower stalks 2-8 mm long; petals yellow-green, the claw slender, the blades dissected into 8 (4-7) linear, opposite, and usually glandular segments; calyces broadly bell-shaped, greenish, 5-6 mm wide, joined to ovary for about 1/3 length; free hypanthium thinly gland-lined, somewhat spreading, about length of lobes; calyx lobes 5, alternate with petals, triangular-egg-shaped; stamens 5, opposite the calyx lobes.
Capsules; seeds black, veiny-pitted.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Wet to moist meadows and woodlands in the lowland and montane zones; rare on S Vancouver Island and the lower Fraser Valley; S to ID, MT, and CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Mitella caulescens

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) 190 709 1744
Slope Gradient (%) 0 3 10
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
320 319 320
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
5 5 6
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: CWH(2), ESSF(1)


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is subalpine boreal & cool mesothermal.

Synonyms and Alternate Names

Mitellastra caulescens (Nutt.) Howell

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References