Grass Alisma
CR

Grass Alisma

Alisma gramineum

UnknownLCEULCEU

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Alisma_gramineum

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Ribbon-leaved Water-plantain faces severe threats from habitat destruction due to wetland drainage, agricultural conversion, and urban development. Water pollution from agricultural runoff and industrial activities further degrades remaining aquatic habitats, while climate change alters water levels and seasonal flooding patterns critical for the species' survival.

Threat summary

Habitat

Shallow freshwater habitats including pond margins, ditches, temporary pools, and seasonally flooded areas with muddy or sandy substrates. The species typically occurs in nutrient-poor to moderately nutrient-rich waters in lowland areas.

FRESHWATER· majorTERRESTRIAL· majorFRESHWATER· major

Other threatened species in Alismataceae

Floating Water-plantainVU

Floating Water-plantain

Luronium natans

Unknown
Broad-leaved ArrowheadCR

Broad-leaved Arrowhead

Sagittaria latifolia

Unknown
creeping lesser water-plantainEN

creeping lesser water-plantain

Baldellia repens

Unknown
Lesser Water-plantainEN

Lesser Water-plantain

Baldellia ranunculoides

Unknown

Frequently asked questions

Why is Grass Alisma classified as Critically Endangered?
Grass Alisma is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Ribbon-leaved Water-plantain faces severe threats from habitat destruction due to wetland drainage, agricultural conversion, and urban development. Water pollution from agricultural runoff and industrial activities further degrades remaining aquatic habitats, while climate change alters water levels and seasonal flooding patterns critical for the species' survival.
Where does Grass Alisma live?
Grass Alisma occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Grass Alisma?
The main threats to Grass Alisma are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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