Blysmus rufus (Huds.) Link
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TAXONOMY
 
Family: Cyperaceae
Genus: Blysmus
 
Species Synonyms: Scirpus rufus (Huds.) Schrad.
Scirpus rufus var. neogaeus Fern.
Common Names: red bulrush
red club-rush
 
DISTRIBUTION
 
Canada: Mackenzie District, northeastern Alberta – central Saskatchewan – Manitoba, James Bay, eastern Quebec – Newfoundland – Nova Scotia
Saskatchewan: central Saskatchewan; Saskatoon – Nitenai River Salt Marsh
Ecoregion: Moist Mixed Grassland, Mid-Boreal Lowland
 
HABITAT
 
Saskatchewan: saline marshes and bogs
Associated Species: bristly muhly, few-flowered spikerush, golden sedge, grass of Parnassus, green sedge, Mackenzie’s sedge, marsh arrowgrass, Parry’s sedge, seaside arrowgrass, water sedge
 
RARITY STATUS
 
Provincial Status According
to Harms (2003):
Threatened
Nature Conservancy Status:
G5 S2
Saskatchewan Species at
Risk Status:
None
COSEWIC Status:
None
 
Red bulrush is threatened because it is rare or uncommon in Saskatchewan. This species occurs in a relatively wide range in central Saskatchewan, but population sizes are variable. No immediate threats to this species are known at the present time..
 
SPECIES DESCRIPTION
 
Height: 10 – 40 cm
Roots: rhizome creeping, freely branched, scales reddish-brown; roots fibrous
Stems: perennial, tufted, commonly growing in a straight row, round in cross section, 1 – 2 mm wide, leafy below
Leaves: basal, 15 – 40 cm, almost as tall as stem, 1 – 2 mm wide, flat, stiff; ligules present
Inflorescence: spike solitary, 1 – 2 cm long, with 2 rows of flowers, flattened, spreading
Bracts: 1 – several, small, inconspicuous to overtopping spike, leaf-like
Spikelets: scales 2 – 5, each subtending flower, dark brown
Flowers: bisexual; perianth bristles 0 or 3 – 5, very short, barbed, deciduous; stamens 3; stigma 2-lobed
Fruits: convex on one or both sides, long-beaked, stalked
 
BLYSMUS VS. SCIRPUS, ELEOCHARIS, AND RHYNCHOSPORA IN SASKATCHEWAN
 
1 Style base enlarged, persistent as swelling on achene
2
1 Style base not enlarged, style generally deciduous
3
   
2 Stems unbranched; spikes 1, many-flowered
Eleocharis
2 Stems branched; spikes 2 or more, one fertile flower per spikelet y
Rhynchospora
   
3 Spikes solitary, flowers in two vertical rows within the spike
Blysmus
3 Spikes 1 - many, arranged in branched, stalked inflorescence or head
Scirpus