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Rushes

Economically Important Rushes



Rushes are not of much direct economic benefit to humans. The Japanese mat rush or soft rush (Juncus effusus) and the wicker rush (J. squarrosus) are used for weaving and making wicker chair-bottoms. Rushes are rarely cultivated for these purposes. The raw materials are usually collected from habitats that are being managed for other purposes or from natural wetlands.



Rushes are sometimes abundant in pastures, but they are not a preferred forage species because their stems are not very palatable or nutritious for domestic livestock.

Rushes also provide useful ecological functions in some of the habitats in which they are abundant. For example, on sloping ground with moist soil rushes may be important in binding the surface soil and thereby helping to prevent some erosion.

A few species of rushes have naturally spread or been introduced by humans beyond their native habitats and are considered to be weeds in some parts of their new range. In North America, the soft rush and path rush (J. tenuis) are minor weeds of pastures, lawns, and some other habitats.

See also Grasses; Sedges.


Resources

Books

Judd, Walter S., Christopher Campbell, Elizabeth A. Kellogg, Michael J. Donoghue, and Peter Stevens. Plant Systematics: A Phylogenetic Approach. 2nd ed. with CD-ROM. Suderland, MD: Sinauer, 2002.


Bill Freedman

KEY TERMS

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Cosmopolitan

—In biogeography, this refers to species that are widely distributed, occurring on many of the continents, as are the cases of some species of rushes.

Floret

—This is a small flower, often with some reduced or missing parts. Florets are generally arranged within a dense cluster.

Inflorescence

—A grouping or arrangement of florets or flowers into a composite structure.

Rhizome

—This is a modified stem that grows horizontally in the soil and from which roots and upward-growing shoots develop at the stem nodes.

Additional topics

Science EncyclopediaScience & Philosophy: Revaluation of values: to Sarin Gas - History And Global Production Of SarinRushes - Biology Of Rushes, Rushes In North America, Rushes In Ecosystems, Economically Important Rushes