Water Lobelia
CR

Water Lobelia

Lobelia dortmanna

UnknownLCEULCEU

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

Overview

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

Water Lobelia faces severe threats from habitat degradation due to eutrophication and acidification of its specialized aquatic environments. The species' extremely narrow ecological requirements make it highly vulnerable to water quality changes, while climate change and human activities continue to degrade the pristine lake conditions it depends upon for survival.

Threat summary

Habitat

Oligotrophic (nutrient-poor) freshwater lakes with sandy or gravelly bottoms, typically growing submerged in shallow waters at depths of 0.5-3 meters. Requires pristine water conditions with low nutrient levels and specific pH ranges in clear, cold northern temperate lakes.

FRESHWATER· major

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Frequently asked questions

Why is Water Lobelia classified as Critically Endangered?
Water Lobelia 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. Water Lobelia faces severe threats from habitat degradation due to eutrophication and acidification of its specialized aquatic environments. The species' extremely narrow ecological requirements make it highly vulnerable to water quality changes, while climate change and human activities continue to degrade the pristine lake conditions it depends upon for survival.
Where does Water Lobelia live?
Water Lobelia 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 Water Lobelia?
The main threats to Water Lobelia 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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