Equisetum variegatum Schleich. ex F. Weber & D. Mohr
northern scouring-rush (variegated scouringrush)
Equisetaceae (Horsetail family)

Introduction to Vascular Plants

Photograph

© Jamie Fenneman     (Photo ID #20477)


Map

E-Flora BC Static Map

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

Species Information

General:
Perennial evergreen from a branched, shiny, blackish rhizome.
Stems:
10-50 cm tall, 1-3 mm thick, their central cavity 1/4 the stem diameter, unbranched, the sheaths with 3-14 teeth.
Cones:
5-7 mm long, pointed at the tip.
Notes:
A hybrid with E. hyemale (E. x trachyodon A. Braun) was collected on the Queen Charlotte Islands (Calder & Taylor 1968). A hybrid with E. laevigatum (E. x nelsonii [A. A. Eaton] Schaffn.) has not been reported from BC, but can be expected.

SourceThe Illustrated Flora of British Columbia

Illustration

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.

Ecology

Ecological Framework for Equisetum variegatum

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

Avg

Min

Max

Elevation (metres)
1357 6 2351
Slope Gradient (%)
7 0 60

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

146 0 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
5 1 8
Modal Nutrient Regime
Class
D
# of field plots
 species was recorded in:
232
Modal BEC Zone Class
ESSF

All BEC Zones (# of stations/zone) species was recorded in

AT(6), BAFA(14), BWBS(14), CWH(4), ESSF(77), ICH(13), IDF(3), IMA(1), MH(11), MS(14), PP(1), SBPS(9), SBS(27), SWB(8)

Habitat and Range

Wet lake shores, streambanks, fens, meadows, clearings and roadsides from the lowland and steppe to subalpine and (rarely) alpine zones; frequent in coastal (ssp. alaskanum) and interior BC (ssp. variegatum); circumpolar, N to AK, E to NF and S to NH, CT, PA, MI, MN, WY, CO, UT, ID and OR; Eurasia.

SourceThe Illustrated Flora of British Columbia