Scirpus fluviatilis - (Torr.)A.Gray.
(Torr.)A.Gray.
River Bulrush
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Bell Museum, University of Minnesota
gbif· cc-by-nc
Florida Museum of Natural History Herbarium - University of Florida
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Loyola University Chicago Herbarium (LUC-)
Description
Scirpus fluviatilis is a PERENNIAL growing to 2 m (6ft 7in). The species is hermaphrodite (has both male and female organs) and is pollinated by Wind. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils and can grow in saline soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist or wet soil and can grow in water.
Edible Uses
The stems are peeled and eaten. Root - raw or cooked. The roots form tubers at intervals along their length and new plants are formed from these tubers. When first formed, the tubers are white and starchy with a sweet coconut-milk flavour, they become black and woody with age. Tubers can be up to 3cm in diameter.
Medicinal Uses
Contraceptive. This plant was ranked 11th in a survey of 250 potential antifertility plants in China.
Distribution
E. Asia to N. America and Australia.
Where It Grows
TEMPERATE ASIA: China (Guizhou Sheng, Jiangsu Sheng, Zhejiang Sheng), Japan (Hokkaidô, Honshu, Kyushu, Shikoku), Taiwan TROPICAL ASIA: Indochina NORTHERN AMERICA: Canada (Québec, Ontario, New Brunswick (south), Saskatchewan, Alberta, Manitoba, British Columbia), United States (Indiana, Maine, Massachusetts, Michigan, New Jersey, New York, Ohio, Pennsylvania, Vermont, Connecticut, Illinois, Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, South Dakota, Wisconsin, Colorado, Idaho, Montana, Oregon, Washington, Delaware, Maryland, Virginia, Tennessee, Arizona, California, Utah) AUSTRALASIA: Australia (New South Wales, Queensland, South Australia, Victoria), New Zealand
Cultivation
We have very little information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors in most parts of this country. The following notes are based on the general needs of the genus. Succeeds in any wet to moisture retentive ground, pond margins and shallow water in full sun or shade.
Propagation
Seed - sow in a cold frame as soon as it is ripe in a pot standing in 3cm of water. Only just cover the seed with soil. The seed usually germinates fairly quickly. Prick out the plants when large enough to handle and plant out in their permanent positions in early summer. Division in spring. Very easy, larger divisions can be planted out direct into their permanent positions. We have found it best to pot up the smaller divisions and grow them on in a lightly shaded position in a cold frame, planting them out once they are well established in the summer.
Other Uses
Basketry. The roots have been used to form the black part of the basket design. The roots were stained by burying them in the mud with ashes until a black colour was obtained.
