Equisetum sylvaticum L.
wood horsetail (woodland horsetail)
Equisetaceae (Horsetail family)

Introduction to Vascular Plants

Photograph

© Adolf Ceska     (Photo ID #11635)


Map

E-Flora BC Static Map

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

Species Information

General:
Perennial from a smooth rhizome.
Stems:
10-60 cm tall, 1-4 mm thick, their central cavity 1/2 the stem diameter, regularly and richly branched, the sheaths with 8-18 teeth which remain fused and form 3-4 groups; branches with 3-4 ridges, branched again, the 1st internodes of the main branches longer than the corresponding sheaths.Cone1-3 mm long, rounded at the tip.

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.

USDA Species Characteristics

Flower Colour:
Green
Blooming Period:
Spring
Fruit/Seed characteristics:
Colour: Green
Present from Spring to Fall
Source:  The USDA

Ecology

Ecological Framework for Equisetum sylvaticum

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)
927 0 2205
Slope Gradient (%)
6 0 75

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

10 0 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
5 2 8
Modal Nutrient Regime
Class
D
# of field plots
 species was recorded in:
1944
Modal BEC Zone Class
SBS

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

BWBS(396), CWH(4), ESSF(235), ICH(325), IDF(12), MS(49), SBPS(25), SBS(766), SWB(22)

Habitat and Range

Moist to wet forests, meadows, clearings, swamps and bog margins in the montane zone; frequent in BC east of the Coast-Cascade Mountains; circumpolar, N to AK, YT and NT, E to NF and S to MA, PA, WV, OH, MI, WI, SD, WY, MT and WA; Eurasia.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Equisetum sylvaticum var. multiramosum (Fernald) Wherry
Equisetum sylvaticum var. pauciramosum Milde
Equisetum sylvaticum var. sylvaticum