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

Armoracia rusticana G. Gaertn., B. Mey. & Scherb.
common horseradish (horseradish)
Brassicaceae (Mustard family)

Introduction to Vascular Plants

General:
Perennial herb from a deep, swollen, spongy root; stems often branched, 0.6-2.0 m tall, glabrous.

Leaves:
Basal leaves long-stalked, 30-50 cm long, widely egg-shaped to oblong, toothed; stem leaves stalked and unstalked; lower stem leaves like basal ones, middle and upper stem leaves often lobed.

Flowers:
Inflorescence a flat-topped cluster; petals white, short-clawed, 5-7 mm long.

Fruits:
Silicles, about 3 mm wide, flattened perpendicular to the partitions, styles about 0.3 mm long; seeds 4-6 per chamber.

Source: The 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.

Illustration Source: The Illustrated Flora of British Columbia

Ecological Framework for Armoracia rusticana

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
Site Information	Avg	Min	Max
Elevation (metres)	1125	1110	1140
Slope Gradient (%)	2	0	5
Aspect (degrees) [0 - N; 90 - E; 180 - S; 270 - W]	239	240	240
Soil Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric]	6	6	6
Modal Nutrient Regime Class	D
# of field plots species was recorded in:	2
Modal BEC Zone Class	SBS
All BEC Zones (# of stations/zone) species was recorded in	SBS(2)
Source: Klinkenberg 2013

Origin Status	Provincial Status	BC List (Red Blue List)	COSEWIC
Exotic	SNA	Exotic	Not Listed

BC Ministry of Environment: BC Species and Ecosystems Explorer.

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