Equisetum hyemale subsp. affine L. (Engelm.) Calder & Roy L. Taylor
scouring-rush (rough horsetail)
Equisetaceae (Horsetail family)
Introduction to Vascular Plants
scouring-rush (rough horsetail)
Equisetaceae (Horsetail family)
Introduction to Vascular Plants
Map
Distribution of Equisetum hyemale subsp. affine
Click here to view the full interactive map and legend
Species Information
General:
Perennial evergreen herbs from a thick, blackish rhizome.
Stems:
30-120 cm tall, 4-6 mm thick, dark green, their cental cavity more than 2/3 the stem diameter, not branched, the sheaths with 14-50 teeth that fall off leaving only darker traces.
Cones:
8-15 mm long, the tip tapered to a black-tinged point.
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.
Illustration Source: The Illustrated Flora of British Columbia
Ecology
Ecological Framework for Equisetum hyemale ssp. affine
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)
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) |
5 | 5 | 5 |
| Slope
Gradient (%) |
12 | 5 | 20 |
|
Aspect (degrees) |
210 | 200 | 220 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
1 | 1 | 1 |
| Modal
Nutrient Regime
Class |
B | ||
| #
of field plots species was recorded in: |
2 | ||
| Modal
BEC Zone Class |
CWH | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
CWH(2) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Moist alluvial forests, riverbanks, roadsides, clearings and forest margins in the lowland, steppe and montane zones; frequent throughout BC; N to AK, YT and NT, E to NF and S to SC, GA, AL, MS, TX, NM, AZ, and CA.Status Information
Synonyms
Synonyms and Alternate Names:
Equisetum hyemale var. affine (Engelm.) A.A. Eaton