Equisetum scirpoides Michx.
dwarf scouring-rush (dwarf scouringrush)
Equisetaceae (Horsetail family)

Introduction to Vascular Plants


© Bryan Kelly-McArthur     (Photo ID #70683)


E-Flora BC Static Map

Distribution of Equisetum scirpoides
Click here to view the full interactive map and legend

Species Information

Perennial evergreen herb from a short, slender, brownish rhizome.
3-20 cm tall, 1-1.5 mm thick, kinked, without a central cavity, not branched, the sheaths with 3 teeth, the teeth dark with white margins.
0.5-1 cm long, with a pointed tip at the top.

SourceThe Illustrated Flora of British Columbia


If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.


Ecological Framework for Equisetum scirpoides

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)
1095 5 2337
Slope Gradient (%)
12 0 205

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

7 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

BAFA(46), BWBS(504), CWH(7), ESSF(213), ICH(66), IDF(95), IMA(1), MS(196), PP(1), SBPS(81), SBS(143), SWB(121)

Habitat and Range

Dry to wet coniferous forests, peat bogs, fens, swamps, and alpine tundra, from the montane to alpine zones; frequent in BC in and east of the Coast-Cascade Mountains; circumpolar, N to AK, YT and NT, E to NF and S to CT, NY, MI, WI, IL, SD, ID and WA; Eurasia.

SourceThe Illustrated Flora of British Columbia