E-Flora BC: Electronic Atlas of the Flora of British Columbia

Carex sartwellii Dewey
Sartwell's Sedge (Dunhead Sedge)
Cyperaceae (Sedge family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #16803)

E-Flora BC Static Map
Distribution of Carex sartwellii
Click here to view our interactive map and legend
Details about map content are available here
Click on the map dots to view record details.

SUBTAXA PRESENT IN BC
Carex sartwellii var. sartwellii

Species Information

Click on the image below to view an expanded illustration for this species.



General:
Perennial herb from stout, creeping, scaly, fibre-covered rhizomes; stems 30-80 cm tall, arising singly or a few together, longer than the leaves.
Leaves:
Sheaths tight, green-lined on the outside towards the bases; blades 2 to 4 per stem, widely separated, 2.5-5 mm wide, the lower ones reduced to scales.
Flowers:
Spikes 20 or more, densely aggregated into a more or less cylindrical, 2- to 5-cm long head, the spikes only distinguishable below, broadly egg-shaped, 6-9 mm long, unstalked, with both female and male flowers, the male flowers towards the tips; bracts broadly egg-shaped, translucent, the lowest ones with prolonged tips, sometimes as long as the inflorescence.
Fruits:
Perigynia, broadly lanceolate to egg-shaped, 2.3-4 mm long, 1.5-1.9 mm wide, plano-convex, appressed, straw-coloured or light brown, smooth, finely several-nerved, finely-toothed, the beaks short, dorsally cleft, about 1/4 the length of the bodies or less; female scales broadly egg-shaped, slightly shorter and narrower than the perigynia, pointed, reddish-brown, the midribs green, the margins translucent; stigmas 2; achenes lens-shaped, smooth, 1.2-2 mm long.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Marshes, fens, wet (often alkaline) meadows and moist open forests in the steppe and montane zones; infrequent in SC and SE BC; N to NT, E to PQ and S to NY, OH, IN, IL, MO, KS, CO and WA.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Carex sartwellii

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

Minimum

Average

Maximum

Elevation (metres) 808 1076 1410
Slope Gradient (%) 0 0 10
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
145 207 270
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
5 6 8
Modal Nutrient Regime
Class
E
Number of field plots
 species was recorded in:
20
Modal BEC Zone Class
SBPS
All BEC Zones (# of stations/zone) species was recorded in: IDF(8), MS(1), SBPS(10), SBS(1)

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References