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

Carex macloviana d'Urv.
Falkland Island sedge (thickhead sedge)
Cyperaceae (Sedge family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #7341)

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Distribution of Carex macloviana
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Species Information

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Perennial, tufted herb from fibrous roots; stems sharply triangular, 20-50 cm tall, exceeding the leaves.
Sheaths tight; blades flat, 2-4 mm wide, borne on the lower 1/3 of the stem.
Spikes 5 to 10 aggregated into a dense, triangular egg-shaped head, 1-2.5 cm in diameter, unstalked, with both female and male flowers, the female ones towards the tips; bracts subtending the spikes sheathless, reduced, inconspicuous.
Perigynia egg-shaped, 3-4.5 mm long, 1-1.5 mm wide, dark green to brown, with copper-brown edges, the margins winged nearly to the bases and the upper 1/2 fringed with teeth, lightly several-nerved on the backs, with faint nerves or nerveless below, the beaks shallowly bidentate, up to 1 mm long, narrowly margined and toothed below; female scales elliptical, brown, with broad translucent margins, somewhat shorter and narrower than the perigynia; stigmas 2; achenes lens-shaped, 0.8-1.3 mm long.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Lakeshores and moist to mesic meadows, forests, grassy slopes and shrub carrs and forest openings in the montane to alpine zones; frequent in N BC, rare in S BC in and east of the Coast-Cascade Mountains; disjunct circumpolar, N to AK, YT and NT, disjunct to Labr., S to WY and CO; Greenland, Iceland, N Europe, S Chile, Falkland Islands.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Carex macloviana

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




Elevation (metres) 550 1503 2200
Slope Gradient (%) 0 19 230
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
20 195 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 4 8
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: AT(3), BAFA(5), BG(1), BWBS(2), CWH(2), ESSF(53), ICH(2), IDF(3), MS(14), SBPS(6), SBS(22), SWB(3)


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.

Synonyms and Alternate Names

Carex festiva Dewey
Carex festiva var. gracilis Olney
Carex festiva var. pachystachya (Cham. ex Steud.) L.H. Bailey
Carex incondita F.J. Herm.
Carex macloviana subsp. macloviana
Carex macloviana subsp. pachystachya (Cham. ex Steud.) Hultén
Carex macloviana subsp. subfusca (W. Boott) T. Koyama
Carex macloviana var. pachystachya (Cham. ex Steud.) Kük.
Carex multimoda L.H. Bailey
Carex pachystachya var. gracilis (Olney) Mack.
Carex pachystachya var. monds-coulteri L. Kelso
Carex pyrophila Gandog.
Carex soperi Raup
Carex stenoptera Mack.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References