General: Bur-reed family (Sparaniaceae).
Sparganium americanum (SPAM)
Sparganium androcladum (SPAN)
Sparganium angustifolium (SPAN2)
Sparganium erectum (SPER)
Sparganium eurycarpum (SPEU)
Sparganium fluctuans (SPFL)
Sparganium glomeratum (SPGL)
Sparganium hyperboreum (SPHY)
Sparganium natans (SPNA)
These bur-reed species are native, herbaceous marsh or pond plants with rootstocks. The leaves are alternate, stiff and erect or limp and floating, linear, and internally septate (The Great Plains Flora Association 1986). The individual flowers are small and occur in separate male (staminate) or female (pistillate) globular clusters on the same plant. (Steyermark 1963).
Distribution: A genus of twenty or more Sparanium species is widely distributed in temperate and colder latitudes of the eastern and western hemispheres, and in eastern North America (Braun 1967). For current distribution, please consult the Plant profile page for this species on the PLANTS Web site.
Regularity: Regularly occurring
Regularity: Regularly occurring
The species occurs mainly in Europe, with scattered records east through the Caucasus and Russia to Kamchatka (including Kazakhstan, Kyrgyzstan, Mongolia), China (Gansu, Heilongjiang, Jilin, Liaoning, Nei Mongol, Xinjiang, and possibly Henan, Hebei and Shaanxi) and Japan, it is also found in northern North America. In Europe, it is common in the west and centre, north into Scandinavia but is less frequent in the Mediterranean, it occurs throughout European Russia (Cook and Nicholls 1986, Castroviejo et al. 2008, eFloras 2011). There is an outlying record from Myanmar (eFloras 2011)
This species grows best on wet ground in rich soil. It prefers full sun but can tolerate some shade. Sparanium species is mostly found in muddy or shallow water of swamps and ponds. For current distribution, please consult the Plant profile page for this species on the PLANTS Web site
Habitat and Ecology
Propagation by Seed: Sparanium seeds should be sown as soon as they are ripe in the greenhouse. This species should be placed in pots standing in two to three centimeters of water. Place the seedlings into individual pots when they are large enough to handle
and gradually increase the depth of water with plant growth. Plant Sparanium sp to their permanent positions in the summer.
Large divisions can be planted directly into their permanent positions. While allowing smaller potted divisions to grow in a cold frame until they are well established and ready for summer out-planting to their permanent location..
Life History and Behavior
Molecular Biology and Genetics
Barcode data: Sparganium angustifolium
Statistics of barcoding coverage: Sparganium angustifolium
Public Records: 4
Specimens with Barcodes: 6
Species With Barcodes: 1
National NatureServe Conservation Status
Rounded National Status Rank: N5 - Secure
Rounded National Status Rank: NNR - Unranked
NatureServe Conservation Status
Rounded Global Status Rank: G5 - Secure
IUCN Red List Assessment
Red List Category
Red List Criteria
Please consult the Plants Web site and your State Department of Natural Resources for this plant’s current status, such as, state noxious status and wetland indicator values.
There are no known past, ongoing, or future threats to the survival of this species.
There are no conservation measures in place or needed.
Cultivars, improved and selected materials (and area of origin)
Contact your local Natural Resources Conservation Service (formerly Soil Conservation Service) office for more information. Look in the phone book under ”United States Government.” The Natural Resources Conservation Service will be listed under the subheading “Department of Agriculture.”
Seeds of most aquatic plants should be sown as soon as they are ripe. The seeds lose viability quickly if it is allowed to dry out. If immediate sowing is inconvenient, store seeds in moist peat, or substitute in a plastic bag and keep frost-free (Heuser 1997).
Relevance to Humans and Ecosystems
Ethnobotanic..The Klamath Indians dug the tubers (possibly Sparganium angustifolium, S. erectum, and/or S. eurycarpum) produced in late autumn from the creeping rootstocks of some of the species of this genus, and use them as food (Steyermark 1963). An infusion of Sparanium erectum can be mixed with other plant leaves and used in the treatment of chills (Moerman 1998). A decoction of Sparganium stoloniferum root was used in the treatment of chest pains and abdominal pain (Yeung 1985).
Sparganium angustifolium is a species of flowering plant in the cat-tail family known by the common name narrowleaf bur-reed. It has a circumboreal distribution, occurring throughout the northern latitudes of the Northern Hemisphere. It is an aquatic plant, growing in water up to 2.5 meters deep. Its habitat includes acidic, low-nutrient freshwater bodies such as ponds, lakes, slow-moving streams, and ditches. It can become abundant, practically covering the surface of the water. It is a perennial herb producing a floating stem with long, narrow, flattened leaves which can be quite long, sometimes reaching over two meters. It is monoecious, individual plants bearing both male and female inflorescences. These are spherical, the male inflorescence a ball of stamens and the female inflorescence a ball of developing fruits.
|Wikimedia Commons has media related to: Sparganium angustifolium|