Unité de Malherbologie & Agronomie Weed Science & Agronomy INRA-Dijon

Bayer Code : alsla

Scientific name: Alisma lanceolata Withering

Synonym(s) of Sc. name: Alisma stenophillum (Asch et Graeb.) Sam.

Classification: Alismataceae, Monocotyledonous

Common name: narrow-leaved water plantain

Synonym(s) of Common name:

Name per country: DE : Lanzettblättriger Froschlöffel ; ES : alisma lanceolada ; FR : alisma lanceolée ; IT : mestolaccio lanceolato ; PT : orelha-de-mula-lanceolada ; EN : narrow-leaved water plantain ;

Biological type: Perennial

Seedling:

- Cotyledons : linear and glabrous.

- Leaves : linear, sessile,prostate.

Adult plant:

- Height : 20-100 cm.

- Stem : glabrous and erect; small tuberous rhizome.

- Leaves : all basal, alternate ; long petiole with dilated spongy base; blade 18-20x1.5-2.5 cm, lanceolate, long-pointed and glabrous.

- Inflorescence : panicle on erect axis; flowers with acuminate, pink or purplish petals ; stigmas 0.3-0.8 mm.

- Fruit : fruitlets 2-3 mm, lateral pericarp thickish, opaque.

- Risk of confusion with: Alisma plantago-aquatica L. (however A. lanceolata is smaller and with thinner leaves).

- Biological type : perennial.

Mistake with: Alisma plantago-aquatica

Ecological profile (click on flags)alsla:   Present       Rare       Present       Rare    

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