Scirpus acutus


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Synonyms for Scirpus acutus

widely distributed North American sedge having rigid olive green stems

References in periodicals archive ?
The peatland is currently dominated by Campylium stellatum, Calliergonelta cuspidata, Scirpus acutus, Eleocharis spp.
Abundant growth of the genus, however, was restricted to the very wet area of the peatland, where Scirpus acutus, other sedges and cattails dominated (Glime et al., 1982).
At each point, we recorded the hydrology/substrate (flowing water, standing water, saturated mud, firm mud, dry wetland), water depth and dominant vegetation using nine broad vegetation groups: cattails (Typhaceae), cutgrass (Leersia oryzoides), forbs, hardstem bulrush (Scirpus acutus), Himalayan blackberry (Rubus discolor), other grasses (Poaceae), other sedges (Cyperaceae), rushes (Juncaceae) and willows (Salix spp.).
-- P -- Saggitaria latifolia -- -- 4, 0.04, <1 Salixcandida -- -- -- Salix pedicellaris -- 7, 0.72, 1 4, 0.04, <1 Salix serrissima -- 7, 0.38, 1 -- Sarracenia purpurea -- -- 18, 1.7, 3 Scirpus acutus 7, 1, 2 34, 19, 17 74, 19.5, 20 Scirpus americanus 3, 0.33, 1 -- -- Scirpus cyperinus -- -- -- Selaginella sp.
livida were common in half of the open fen plots, and Scirpus acutus was common in the remaining plots.
Scirpus acutus (Muhl.).--Subfossil material: Achenes (INSM 71.12.002901.016; Swinehart #4B.4.16.19).
Beem Lake in Grant County (56 ha surface area; 42 [degrees] 00[minute]N 101 [degrees] 45[minutes]W) and Swan Lake in Arthur County (110 ha surface area; 41 [degrees] 45[minutes]N 101 [degrees] 30[minutes]W) were densely vegetated sandhills lakes with large stands of Scirpus acutus interspersed with Sagittaria cuneata, Eleocharus sp.
Typical plant species in this community type include Aster puniceus firmus, Bidens coronata tenuiloba, Carex aquatilis altior, Decodon verticillatus, Polygonum punctatum, and Scirpus acutus. Historically, periodic fires--both natural and man-made--have been a crucial factor in maintaining marshes because fires prohibit the invasion of woody shrubs and trees.