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Alisma lanceolatum

From Wikipedia, the free encyclopedia

Alisma lanceolatum

Apparently Secure(NatureServe)[2]
Scientific classificationEdit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Alismatales
Family: Alismataceae
Genus: Alisma
Species:
A. lanceolatum
Binomial name
Alisma lanceolatum

Alisma lanceolatumis a species ofaquatic plantin thewater plantain familyknown by the common nameslanceleaf water plantainandnarrow-leaved water plantain.[3]It is widespread acrossEurope,North Africaand temperateAsia.[4]It is naturalized inAustralia,New Zealand,Oregon,CaliforniaandBritish Columbia.It is considered anoxious weedin some places.[5][6][7][8]

This species is a weed ofrice fieldsin many areas, includingNew South WalesandCalifornia.

InEnglandandWalesit is occasionally locally found, inIrelandit is rare, andScotlandit is very rare.

It is found in mud and in fresh waters.

Description

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Part of an inflorescence and single blossom

This is aperennial herbgrowing from acaudexin the water or mud that typically reaches a height of about 0.7 meters and a spread of 0.25 meters.[9]It produces lance-shapedleaves12 to 20 centimeters long and 4 wide on longpetioles;leaves which remain submerged in water are smaller and less prominently veined. Theinflorescenceis mostly erect and up to half a meter tall.

It produces a wide array of small pinkish-purple three-petalledflowersthat open in the morning, from June until August.[10]Thefruitis a tinyacheneup to 2 or 3 millimeters long clustered into an aggregate fruit of about 20 units. Theseedsare reddish-brown and about 1.5 millimeters long.[4]

Cultivation

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Grows best in water 15-30 centimeters deep in full sun. Suitable forUSDA hardiness zones5–8.[9]

Similar Species

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The water plantainAlisma plantago-aquaticahas acute leaf tips not tapering to a stalk.[11]The flowers of A. plantago-aquatica also typically open in the afternoon, and the leaves are wider.[10]

References

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  1. ^Akhani, H.; Zehzad, B. (2014)."Alisma lanceolatum".IUCN Red List of Threatened Species.2014:e.T163974A42307131.doi:10.2305/IUCN.UK.2014-1.RLTS.T163974A42307131.en.Retrieved20 November2021.
  2. ^"NatureServe Explorer".Retrieved2021-04-22.
  3. ^BSBI List 2007(xls).Botanical Society of Britain and Ireland.Archived fromthe original(xls)on 2015-06-26.Retrieved2014-10-17.
  4. ^ab"Alisma lanceolatum: Narrow-leaved Water-plantain | NBN Atlas".species.nbnatlas.org.Retrieved2021-04-22.
  5. ^"World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew".apps.kew.org.Retrieved2017-01-26.
  6. ^Biota of North America Program
  7. ^"Alisma lanceolatum in Flora of China @ efloras.org".efloras.org.Retrieved2017-01-26.
  8. ^"Alisma lanceolatum in Flora of North America @ efloras.org".efloras.org.Retrieved2017-01-26.
  9. ^abShoot."Alisma lanceolatum Narrow-leaved water plantain Care Plant Varieties & Pruning Advice".shootgardening.co.uk.Retrieved2021-04-22.
  10. ^ab"Irish Wildflowers - Narrow-leaved Water-plantain, Alisma lanceolatum".irishwildflowers.ie.Retrieved2021-04-22.
  11. ^Rose, Francis(2006).The Wild Flower Key.Frederick Warne & Co. pp. 483–484.ISBN978-0-7232-5175-0.
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