Sparganium


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Sparganium

 

(bur reeds), a genus of perennial aquatic or marsh plants of the family Sparganiaceae. The flowers are unisexual and cluster in thick heads. The perianth is formed by three to six scaly leaflets. The fruit is dry and has a porous pericarp. There are about 20 species in the temperate and subarctic regions of the northern hemisphere, as well as in Australia and New Zealand. In the USSR there are about ten species, the most common of which are S. erectum and the simple bur reed (S. simplex). Bur reeds serve as food for waterfowl and aquatic fur-bearing animals like the coypu and the muskrat. Some species are valued in apiculture as beebread plants.

References in periodicals archive ?
California) y otras que se encuentran en zonas mas interiores del pais, como Elatine brachysperma, Nuphar advena, Potamogeton amplifolius, Sparganium americanum y Wolffiella gladiata.
The vegetation in Group 1 was dominated by Fontinalis antipyretica (78% of the sites), Nuphar lutea (70%), and Sparganium emersum (70%).
Species % Cover % Glyceria septentrionalis 88 13.34 12.15 Persicaria coccinea 72 10.66 9.94 Bidens cernua 96 6.90 13.26 Sparganium androcladum 48 9.04 6.63 Echinochloa muricata 68 5.20 9.39 Pontederia cordata 48 5.60 6.63 Phalaris arundinacea 44 3.72 6.08 Sagittaria brevirostra 52 2.90 7.18 Persicaria hydropiperoides 24 3.06 3.31 Ranunculus flabellaris 48 0.64 6.63 Nymphaea tuberosa 32 1.92 4.42 Acer saccharinum 36 0.18 4.97 Nuphar advena 20 1.08 2.76 Erechtites hieracifolia 24 0.42 3.31 Leersia oryzoides 12 0.74 1.66 Bidens frondosa 8 0.04 1.10 Bidens coronata 4 0.02 0.55 Totals 65.46 100.00 Bare ground and litter 15.36 Rel.
triqueter), flowering rush (Butomus umbellatus), bur-reed (Sparganium erectum), sweet-grass (Glyceria spp.), sedges (Carex spp.), nut-sedge (Cyperus spp.), and cut-grass (Cladium spp.).
The following aquatic plants were studied: Potamogeton perfoliatus, Ranunculus eradicatus, Sparganium stenofillum, and also some species of blue-green algae.
In the freshwater lakes, the helophytic vegetation consists of beds of club-rushes, reeds, and reedmaces, with club-rush (Scirpus lacustris), common reed (Phragmites australis [=communis]), and the narrow-leaved bulrush (Typha angustifolia) together with variable patches of yellow flag iris (Iris pseudacorus) accompanied by the white water-lily (Nymphaea alba) and Sparganium erectum.
Swampy land, on the other hand, would be filled with plants which can grow in oxygen-starved soil because of special air-containing tissue: Equisetum (horsetail or scouring rush), rushes (Juncus), Scirpus, Alisma, Sagittaria and Sparganium. Bog plants that do not have special tissue but that still do well might also be seen: Kalmia (mountain laurel), Vaccinum (huckleberry group), Ledum or Andromeda (both heather family).
compass plant Sium suave Walter water parsnip Sorghastrum nutans (L.) Nash Indian grass Sparganium bur-reed Staphylea trifolia L.
Cyperus rotundus combined with GZFLW was used most frequently, 8% of all prescriptions, followed by Sparganium stoloniferum combined with Curcuma phaelculis and Corydalis yanhusuo combined with Cyperus rotundus (6.5% and 5.9%, resp.).
It is notable that among the hydrophytes mainly the frequency of the plants of sheltered habitats, such as Spirodela, Hydrocharis, Lemna, Nuphar, Ceratophyllum, Sparganium, Stratiotes, and Elodea increased (Table 3).
Uber die Verwandtschaft von Typha und Sparganium im Infloreszenz- und Blutenbau.
1 in 6, + in 7; Trifoliumpratense 1 in 5, + in 8; Danthonia decumbens + in 6 and 7; Cerastium vulgare 1 in 7, + in 8; Nardus stricta + in 7, 1 in 9; Equisetum palustre, Stellaria alsine and Trifolium repens 1, Glyceria declinata and Montia amporitana + in 5; Eleocharis quinqueflora in 1, Polygala vulgaris and Sparganium neglectum + in 7; Geum hispidum, Trifolium montanum and Veronica beccabunga +in 8; Juncus bulbosus 1 in 9.