Carex petasata Dewey
pasture sedge (broad-wing sedge; Liddon sedge)
Cyperaceae (Sedge family)
Introduction to Vascular Plants
pasture sedge (broad-wing sedge; Liddon sedge)
Cyperaceae (Sedge family)
Introduction to Vascular Plants
Species Information
General:
Perennial, tufted herb from fibrous roots; stems 30-80 cm tall, well exceeding the leaves.
Leaves:
Sheaths tight; blades flat, 2-3 mm wide, borne on the lower 1/3 of the stem.
Flowers:
Spikes 4 to 6, aggregated into an elongated, 2-4 cm long head, unstalked, with both female and male flowers, the female ones towards the tips; bracts subtending the spikes sheathless, scalelike, the lowermost one occasionally prolonged.
Fruits:
Perigynia lanceolate or narrowly egg-shaped, 6-8 mm long, 2-2.3 mm wide, light green to straw-coloured or brownish, more or less flattened, the margins winged nearly to the bases, the upper 1/2 fringed with teeth, many-nerved on both sides, with spongy bases, the beaks 2-3 mm long, bidentate, broadly-margined, toothed below; female scales egg-shaped, brownish, with green centres, with translucent margins, somewhat shorter and narrower than the perigynia, short-awned; stigmas 2; achenes lens-shaped, 2.5-3 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 petasata
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) |
1030 | 170 | 2410 |
| Slope
Gradient (%) |
23 | 0 | 360 |
|
Aspect (degrees) |
174 | 9 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
3 | 0 | 7 |
| Modal
Nutrient Regime
Class |
C | ||
| #
of field plots species was recorded in: |
164 | ||
| Modal
BEC Zone Class |
IDF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
AT(1), BAFA(1), BG(30), BWBS(2), ESSF(16), ICH(1), IDF(61), MS(9), PP(18), SBS(10), SWB(5) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Dry to moist meadows, grassy slopes and open forests in the steppe and montane zones; common in SC BC, less frequent elsewhere E of the Coast-Cascade Mountains, the Queen Charlotte Islands and the adjacent mainland; N to SW YT, E to SW SK and S to NM, AZ and OR.Status Information
Synonyms
Synonyms and Alternate Names:
Carex liddonii