VU

Sparganium gramineum

Local name: Sjøpiggknopp

UnknownLCEULCEU

Overview

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

Sparganium gramineum faces severe decline due to wetland drainage and agricultural conversion of its shallow water habitats. Eutrophication from agricultural runoff and urban development degrades water quality in remaining populations. Climate change-induced alterations to precipitation patterns threaten the specific water level conditions this species requires for successful reproduction.

Threat summary

Habitat

Sjøpiggknopp inhabits shallow freshwater environments including lake margins, slow-flowing streams, ditches, and marshy areas with water depths typically ranging from 10-50 centimeters. The species requires nutrient-poor to moderately nutrient-rich waters with muddy or sandy substrates and prefers areas with fluctuating water levels.

FRESHWATER· major

Other threatened species in Typhaceae

Narrowleaf BurreedEN

Narrowleaf Burreed

Sparganium angustifolium

Unknown

Frequently asked questions

Why is Sjøpiggknopp classified as Vulnerable?
Sjøpiggknopp is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Sparganium gramineum faces severe decline due to wetland drainage and agricultural conversion of its shallow water habitats. Eutrophication from agricultural runoff and urban development degrades water quality in remaining populations. Climate change-induced alterations to precipitation patterns threaten the specific water level conditions this species requires for successful reproduction.
Where does Sjøpiggknopp live?
Sjøpiggknopp 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 Sjøpiggknopp?
The main threats to Sjøpiggknopp 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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