Alisma lanceolatum
| Alisma lanceolatum | |
|---|---|
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| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Monocots |
| Order: | Alismatales |
| Family: | Alismataceae |
| Genus: | Alisma |
| Species: | A. lanceolatum |
| Binomial name | |
| Alisma lanceolatum With. |
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Alisma lanceolatum is a species of aquatic plant in the water plantain family known by the common name lanceleaf water plantain, and also Narrow leaved water plantain. It is native to Eurasia and North Africa and it is present in many other parts of the world as an introduced species, and in some cases, a serious noxious weed.
This species is a weed of rice fields in many areas, including New South Wales and California.
In England and Wales it is occasionally locally found, in Ireland it is rare, and Scotland it is very rare.
It is found in mud and in fresh waters.
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[edit] Description
This is a perennial herb growing from a caudex in the water or mud. It produces lance-shaped leaves 12 to 20 centimeters long and 4 wide on long petioles; leaves which remain submerged in water are smaller and less prominently veined. The inflorescence is mostly erect and up to half a meter tall.
It is a wide array of small pink-petalled flowers, which open in the morning, from June until August. The fruit is a tiny achene up to 2 or 3 millimeters long clustered into an aggregate fruit of about 20 units.
[edit] Similar Species
Water plantain Alisma plantago-aquatica leaf tips are acute and not tapered to a stalk.[1]
[edit] External links
[edit] References
- ^ Rose, Francis (2006). The Wild Flower Key. Frederick Warne & Co. pp. 483–484. ISBN 978-0-7232-5175-0.
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