Perennial, tufted herb from fibrous roots, stems triangular, 30-90 cm tall, exceeding the leaves.
Sheaths tight; blades flat, 2-4 mm wide, borne on the lower 1/3 of the stem, the lowermost leaves reduced to scales.
Spikes 5 to 10 aggregated into a dense 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, awned.
Perigynia egg-shaped, 3-4.5 mm long, 1-1.5 mm wide, light green, straw-coloured, or light brown, the margins winged nearly to the bases, the upper 1/2 fringed with teeth, lightly several-nerved on the backs, with faint nerves or nerveless below, the beaks obscurely bidentate, up to 1.5 mm long, narrowly margined and toothed below; female scales elliptical, light brown, somewhat shorter and narrower than the perigynia; stigmas 2; achenes lens-shaped, 0.8-1.3 mm long.
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
Present over the Summer
Source: The USDA
||Value / Class
Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
of field plots
species was recorded in:
BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in
|AT(5), ESSF(10), ICH(3), SBPS(1)|
Source: Klinkenberg 2013
Synonyms and Alternate Names:
Carex festivella Mack.
Carex limnophila F.J. Herm.
Carex macloviana subsp. festivella (Mack.) A. Löve & D. Löve
Carex macloviana var. microptera (Mack.) B. Boivin
Carex microptera var. crassinervia F.J. Herm.
Carex microptera var. limnophila (F.J. Herm.) Dorn