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Lanceleaf water plantain

Alisma lanceolatum · Aquatic plants

Lanceleaf water plantain: Whole plant

Whole plant · Photo: Leon Perrie / CC BY

IntroducedEmergent

Also called Narrowleaf water plantain (European)

How to identify Lanceleaf water plantain

  • Lance shaped leaves tapering to the stalk
  • Branched clusters of pink tinged flowers
  • Flowers open in the morning
  • Basal rosette

Similar plants

Water plantain has oval leaves with rounded bases and white flowers.

Growth profile

Growing seasonGrows from spring, flowers June to September.
Starts growingAbout 55 F soil
LightFull sun
DepthMoist shoreline to about 1 foot of water
How it spreadsSeeds
HabitatDitches, pond edges and wet fields at low elevation.

Why it matters in a lake

Non native; established in low elevation ditches and wet fields.

Where it is found

  • Idaho: Not recorded
  • Oregon: Occasional
  • Wyoming: Not recorded

Classification

KingdomPlantae
PhylumTracheophyta
ClassMagnoliopsida
OrderAlismatales
FamilyAlismataceae
Scientific nameAlisma lanceolatum

Need a hand?

Is it taking over your lake?

We identify what is growing, map how much of it there is and build a control plan that targets it without harming the rest of the lake.

Idaho / Wyoming (208) 501-4531Oregon (541) 280-0596