Carex duriuscula C.A. Mey.
narrow-leaved sedge (needleleaf sedge)
Cyperaceae (Sedge family)
Introduction to Vascular Plants
narrow-leaved sedge (needleleaf sedge)
Cyperaceae (Sedge family)
Introduction to Vascular Plants
Species Information
General:
Perennial herb from long-creeping rhizomes; stems 5-20 cm tall, arising singly or a few together, exceeding the leaves.
Leaves:
Sheaths green, the lower ones bladeless; blades 1 to 4 per stem, crowded toward the base, flat or more often channeled, the margins sometimes in-rolled, 0.3-1.5 mm wide.
Flowers:
Spikes densely aggregated into an egg-shaped, 5- to 20-mm long head, the spikes scarcely distinguishable, 4-9 mm long, unstalked, with both female and male flowers, the male flowers towards the tips; bracts inconspicuous and like the scales.
Fruits:
Perigynia few, narrowly to broadly egg-shaped, 2.5-3.5 mm long, 1.5-2 mm wide, appressed ascending, brown, obscurely biconvex, smooth, nerveless or often more or less several-nerved, short-stalked, the beaks bidentate, finely toothed, 1/3 to 1/4 the length of the bodies; female scales broadly egg-shaped, as long as and slightly wider than the perigynia, the lower ones awn-tipped, the upper ones round-tipped, light to medium brown, the margins translucent; stigmas 2; achenes lens-shaped, smooth, 1.5-1.8 mm long.
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.
Illustration Source: The Illustrated Flora of British Columbia
Ecology
Ecological Framework for Carex duriuscula
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)
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) |
940 | 380 | 1700 |
| Slope
Gradient (%) |
11 | 0 | 47 |
|
Aspect (degrees) |
272 | 63 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
4 | 2 | 7 |
| Modal
Nutrient Regime
Class |
C | ||
| #
of field plots species was recorded in: |
18 | ||
| Modal
BEC Zone Class |
BG | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
BG(5), CWH(2), ESSF(2), ICH(1), IDF(4), MH(2), PP(2) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Moist to dry, often alkaline, grassy or rocky slopes in the steppe and montane zones; infrequent in C and SE BC, rare in NE BC; N to AK, YT and NT, E to MB and S to IL, MO, KS, NM, AZ and CA.Status Information
Synonyms
Synonyms and Alternate Names:
Carex eleocharis L.H. Bailey
Carex stenophylla auct. non Wahlenb.
Carex stenophylla subsp. eleocharis (Bailey) HultTn
Carex stenophylla var. eleocharis
Carex stenophylla var. enervis Kⁿk.