Carex anthoxanthea J. Presl & C. Presl
yellow-flowered sedge (grassyslope arctic sedge)
Cyperaceae (Sedge family)
Introduction to Vascular Plants
yellow-flowered sedge (grassyslope arctic sedge)
Cyperaceae (Sedge family)
Introduction to Vascular Plants
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Species Information
General:
Perennial herb from creeping rhizomes; stems 5-40 cm tall, equalling the leaves or nearly so, roughened above.
Leaves:
Sheaths short, greenish-whitish; blades 2 to 4 from near the base, flat, 1-2 mm wide, the lower ones lacking or reduced, roughened at the tips.
Flowers:
Spikes solitary, with both female and male flowers, the male flowers towards the tips, 1-3 cm long, 2-3 mm wide, erect; bract subtending the spike lacking.
Fruits:
Perigynia lanceolate to narrowly elliptical, 3.8-4.2 mm long, 1.3-1.6 mm wide, yellowish-green to straw-coloured, obscurely compressed-triangular, smooth, many-nerved, the beaks about 1 mm long; female scales lanceolate, shorter or longer than the perigynia, the lower ones awn-tipped, the upper ones round-tipped, dark brown with 1- to 3-nerved green centres; stigmas 3, rarely 2; achenes 3-angled, granular, 1.3-1.5 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 anthoxanthea
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) |
457 | 2 | 2120 |
| Slope
Gradient (%) |
22 | 0 | 120 |
|
Aspect (degrees) |
63 | 0 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
5 | 0 | 8 |
| Modal
Nutrient Regime
Class |
C | ||
| #
of field plots species was recorded in: |
215 | ||
| Modal
BEC Zone Class |
CWH | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
AT(3), BAFA(3), BWBS(1), CMA(6), CWH(143), ESSF(15), MH(41), PP(1), SWB(1) | ||
|
Source:
Klinkenberg 2013
|
|||