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

Subularia aquatica L.
Water Awlwort (awlwort; Sheathing Pondweed; waterawlwort)
Brassicaceae (Mustard family)

Introduction to Vascular Plants
Once images have been obtained, photographs of this species will be displayed in this window.Click on the image to enter our photo gallery.
Currently no image is available for this taxon.
E-Flora BC Static Map
Distribution of Subularia aquatica
Click here to view our interactive map and legend
Details about map content are available here
Click on the map dots to view record details.

Subularia aquatica ssp. americana

Species Information

Click on the image below to view an expanded illustration for this species.

Annual herb from a fibrous root; stems erect, 1-10 cm tall, glabrous.
Basal leaves erect, linear and awl-like, 1-5 cm long, about 1 mm wide, entire; stem leaves similar, few, reduced.
Inflorescences racemose, open; flower stalks 1-2 mm long, ascending to erect; petals white, 0.2-1 mm long; sepals green, 0.5-0.8 mm long, erect, glabrous.
Silicles, narrowly elliptic to broadly egg-shaped, 2-3 mm long, 1.5-2 mm wide, inflated, glabrous; beaks obsolete; seeds oblong, about 1 mm long, wingless.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Wet, usually shallow water along streams, shorelines and shallow ponds in the lowland, steppe and montane zones; infrequent in S BC; N to AK, YT and NT, E to NF and S to WY and CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Subularia aquatica

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)
Slope Gradient (%)
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: CWH(3)

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References