Carex tribuloides Wahlenb.
blunt broom sedge
Cyperaceae (Sedge family)

Introduction to Vascular Plants

Photograph

Once images have been obtained, photographs of this taxon will be displayed in this window.Click on the image to enter our photo gallery.
Currently no image is available for this taxon.


Map

E-Flora BC Static Map

Distribution of Carex tribuloides
Click here to view the full interactive map and legend

Species Information

General:
Perennial, tufted herb from fibrous roots; stems 50-90 cm tall, exceeding the leaves.
Leaves:
Sheaths tight; blades flat, 2.5-7 mm wide, borne along the stems, the lower ones strongly reduced.
Flowers:
Spikes 6 to 15, aggregated into an elongated head 2-5 cm long, unstalked, with both female and male flowers, the female ones towards the tips; bracts subtending the spikes sheathless, reduced, inconspicuous.
Fruits:
Perigynia narrowly lanceolate, 3-5 mm long, 1-1.5 mm wide, pale green or straw-coloured, more or less flattened, distended over the achenes, the margins winged nearly to the bases, the upper 1/2 fringed with teeth, lightly several-nerved on both sides, the beaks shallowly bidentate, 1-1.2 mm long, narrowly margined and toothed below; female scales elliptical, pointed, brownish, with translucent margins, somewhat shorter and narrower than the perigynia; stigmas 2; achenes lens-shaped, 1.5 mm long.

SourceThe Illustrated Flora of British Columbia

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.

USDA Species Characteristics

Flower Colour:
Green
Blooming Period:
Late Spring
Fruit/Seed characteristics:
Colour: Brown
Present over the Summer
Source:  The USDA

Ecology

Ecological Framework for Carex tribuloides

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)
784 530 1220
Slope Gradient (%)
2 0 15

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

5 10 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
6 4 8
Modal Nutrient Regime
Class
B
# of field plots
 species was recorded in:
12
Modal BEC Zone Class
SBS

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

BWBS(3), ICH(2), SBPS(1), SBS(4)

Habitat and Range

Moist to wet sites in the lowland zone, rare in the lower Fraser Valley; introduced from E North America.

SourceThe Illustrated Flora of British Columbia