Sisyrinchium septentrionale E.P. Bicknell
northern blue-eyed-grass (northern blue-eyed grass)
Iridaceae (Iris family)

Introduction to Vascular Plants


© Curtis Bjork     (Photo ID #24990)


E-Flora BC Static Map

Distribution of Sisyrinchium septentrionale
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Species Information

Perennial tufted herb from a fibrous root; stems several, simple, flat, 2-winged, 10-30 cm tall.
Mostly basal, the blades few, linear, 10-30 cm long, 0.8-2 mm wide, sheathing, the margins entire, the tips long-pointed; stem leaves 1 or few at the nodes, similar to basal.
Inflorescence of 2 to 5 showy, nodding flowers on slender, smooth, 2- to 2.5-cm long stalks; flowers white to blue-violet, of 6 distinct, narrowly elliptic to oblanceolate segments, these similar, (0.7) 0.9-1.2 cm long, rounded, notched, abruptly bristle-tipped, the tubes slightly inflated below, 1-2 mm long; bracts 2, unequal, the outer one exceeding the flowers; filaments fused about 1/3 their length; anthers (1) 1.5-2.2 mm long, yellow.
Capsules, egg-shaped to globe-shaped, 3.5-5 mm long; seeds numerous, angled, black, 0.5-1.2 mm wide. vol6_6

SourceThe 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.


Ecological Framework for Sisyrinchium septentrionale

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)
995 969 1042
Slope Gradient (%)
5 0 11

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

148 99 340
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
4 4 5
Modal Nutrient Regime
# of field plots
 species was recorded in:
Modal BEC Zone Class

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

BG(1), IDF(6)

Habitat and Range

Dry meadows and streambanks in the steppe and montane zones; infrequent in BC east of the Coast-Cascade Mountains; E to MB and S to WA.

SourceThe Illustrated Flora of British Columbia