Butomus umbellatus: Difference between revisions

Latest revision as of 21:13, 18 February 2010

Butomus umbellatus subsp. var.

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Lifespan:	⌛
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Bloom:	❀	mid summer, late summer, early fall

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Butomaceae >

Butomus

umbellatus

var.

, L.

If this plant info box on watering; zones; height; etc. is mostly empty you can click on the edit tab and fill in the blanks!

Butomus is the sole genus in the monogenetic plant family Butomaceae, containing the single species Butomus umbellatus, also known as flowering rush or grass rush.

The plant is a rhizomatous, hairless, perennial aquatic plant. Its name is derived from Greek bous, meaning "cow", "ox" etc and tome, a cut (the verb 'temnein' meaning "to cut"), which refers to the plant's swordlike leaves.

Other than suggested by its English common name, it is not a true rush. It is native to Eurasia and grows on the margins of still and slowly moving water down to a depth of about 3 m. It has pink flowers. Introduced into North America as an ornamental plant it has now become a serious invasive weed in the Great Lakes area. In Israel, one of its native countries, it is an endangered species due to the dwindling of its habitat. It can also be found in Great Britain locally, for example Butomus umbellatus at Caldicot and Wentloog Levels otherwise known as Gwent Levels SSSI^[1]

The plant has linear, pointed leaves up to 1 metre long, or more. The leaves are triangular in cross-section and arise in two rows along the rhizome/base. They are untoothed, parallel veined and twisted.^[2]

The inflorescence is umbel-like consisting of a single terminal flower surrounded by three cymes. The flowers are regular and bisexual, 2 to 3 cm across. There are three petal-like sepals which are pink with darker veins. They persist in the fruit. The three petals are like the sepals but somewhat larger. 6 - 9 stamens. Carpels superior, 6 - 9 and slightly united at the base. When ripe they are obovoid and crowned with a persistent style. Ovules are numerous and found scattered over the inner surface of the carpel wall, except on the midrib and edges. Fruit is a follicle. The seeds have no endosperm and a straight embryo. It flowers from July until September.

Frequently cultivated as an attractive ornamental plant. In parts of Russia the rhizomes are used as food.

[hide]Standard Cyclopedia of Horticulture
Butomus umbellatus, Linn. Flowering Rush. Rhizome thick: Lvs. 2-3 ft. long, iris-like, sheathing at the base, 3-cornered: fls. rose-colored, 25-30 in an umbel, on a long scape; sepals 3; petals 3. Summer. Eu., Asia, in still water. Prop, by division. The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.

Cultivation

Propagation

Pests and diseases

Varieties

Gallery

photo 1
photo 2
photo 3

References

↑ Natural World Magazine, Spring 2009, The Wildlife Trust, published by Think publishing
↑ Rose, Francis (2006). The Wild Flower Key. Frederick Warne & Co. pp. 480-481. ISBN 978-0723251750.

Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963

External links

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[1] Natural World Magazine, Spring 2009, The Wildlife Trust, published by Think publishing

[The_Wild_Flower_Key-2] Rose, Francis (2006). The Wild Flower Key. Frederick Warne & Co. pp. 480-481. ISBN 978-0723251750.

[1]

[2]

@@ Line 1: / Line 1: @@
 {{SPlantbox
-|genus=Butomus
+|familia=Butomaceae
+|genus=Butomus
 |species=umbellatus
+|taxo_author=L.
+|flower_season=mid summer, late summer, early fall
 |Temp Metric=°F
 |jumpin=If this plant info box on watering; zones; height; etc. is mostly empty you can click on the edit tab and fill in the blanks!
-|image=Upload.png
+|image=ButomusUmbellatus3.jpg
-|image_width=240
+|image_width=180
 }}
+[[Image:Butomus umbellatus.JPG|thumb|250px|''The flowers of ''Butomus umbellatus'']]'''Butomus''' is the sole [[genus]] in the [[Monotypic|monogenetic]] plant [[family (biology)|family]] '''Butomaceae''', containing the single species '''''Butomus umbellatus''''', also known as '''flowering rush''' or '''grass rush'''.
+The plant is a [[Rhizome|rhizomatous]], hairless, [[perennial plant|perennial]] [[aquatic plant]]. Its name is derived from [[Greek language|Greek]] ''bous'', meaning "cow", "ox" etc and ''tome'', a cut (the verb 'temnein' meaning "to cut"), which refers to the plant's swordlike leaves.
+Other than suggested by its English common name, it is not a true [[Juncaceae|rush]]. It is native to [[Eurasia]] and grows on the margins of still and slowly moving water down to a depth of about 3 m. It has pink [[flower]]s. Introduced into [[North America]] as an [[ornamental plant]] it has now become a serious [[invasive species|invasive weed]] in the [[Great Lakes]] area. In [[Israel]], one of its native countries, it is an [[endangered species]] due to the dwindling of its habitat.  It can also be found in [[Great Britain]] locally, for example Butomus umbellatus at [[Caldicot and Wentloog Levels]] otherwise known as Gwent Levels [[SSSI]]<ref>Natural World Magazine, Spring 2009, The Wildlife Trust, published by Think publishing</ref>
+The plant has linear, pointed [[leaves]] up to 1 metre long, or more. The leaves are triangular in cross-section and arise in two rows along the [[rhizome]]/base. They are untoothed, parallel veined and twisted.<ref name="The Wild Flower Key">{{cite book |last=Rose |first=Francis|authorlink=Francis Rose  |title=The Wild Flower Key |year=2006 |publisher=Frederick Warne & Co|isbn=978-0723251750 |pages=480-481}}</ref>
+The [[inflorescence]] is [[umbel]]-like consisting of a single terminal [[flower]] surrounded by three [[cymes]]. The [[flowers]] are regular and [[bisexual]], 2 to 3 cm across. There are three petal-like [[sepals]] which are pink with darker veins. They persist in the [[fruit]]. The three [[petals]] are like the sepals but somewhat larger. 6 - 9 [[stamens]]. [[Carpels]] superior, 6 - 9 and slightly united at the base. When ripe they are obovoid and crowned with a persistent [[carpel|style]]. Ovules are numerous and found scattered over the inner surface of the [[carpel]] wall, except on the midrib and edges. [[Fruit]] is a follicle. The [[seeds]] have no endosperm and a straight embryo.  It flowers from July until September.
+Frequently cultivated as an attractive ornamental plant. In parts of Russia the rhizomes are used as food.
 {{Inc|
-Butomus umbellatus, Linn. Flowering Rush. Fig. 698. Rhizome thick: Lvs. 2-3 ft. long, iris-like, sheathing at the base, 3-cornered: fls. rose-colored, 25-30 in an umbel, on a long scape; sepals 3; petals 3. Summer. Eu., Asia, in still water. Prop, by division.
+Butomus umbellatus, Linn. Flowering Rush. Rhizome thick: Lvs. 2-3 ft. long, iris-like, sheathing at the base, 3-cornered: fls. rose-colored, 25-30 in an umbel, on a long scape; sepals 3; petals 3. Summer. Eu., Asia, in still water. Prop, by division.
 }}