Schoenoplectus acutus (Muhl. ex Bigelow) Á. Löve & D. Löve
hard-stemmed bulrush (hardstem bulrush)
Cyperaceae (Sedge family)

Introduction to Vascular Plants


© Bryan Kelly-McArthur     (Photo ID #87111)


E-Flora BC Static Map

Distribution of Schoenoplectus acutus
Click here to view the full interactive map and legend

Species Information

Perennial herb from stout rhizomes, forming large colonies; stems circular in cross-section, tapered, firm, not easily crushed between the fingers, 100-300 (500) cm tall.
Few, borne mainly or entirely toward the bases of the stems; sheaths prominent, well-developed; blades short, poorly-developed, or bladeless.
Scales pale grey-white with numerous, short, linear, reddish-brown marks, more or less sticky short-hairy, mostly (3) 3.5-4 mm long, broadly egg-shaped, the margins somewhat irregularly jagged or fringed with cobwebby, soft, long-tangled hairs, the midri

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 Schoenoplectus acutus

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)
804 1 1260
Slope Gradient (%)
0 0 20

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

152 40 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
7 4 8
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(6), CDF(12), CWH(17), ICH(7), IDF(48), MS(3), PP(1), SBPS(4), SBS(6)

Habitat and Range

Marshes, lakeshores and streams in the lowland, steppe and montane zones; common throughout BC south of 56degreeN, less frequent northward; N to AK and YT, E to NF and S to TN, GA, TX, NM and CA.

SourceThe Illustrated Flora of British Columbia