CR

Isoetes sinensis

Unknown

Overview

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

Isoetes sinensis faces severe threats from rapid urbanization and agricultural expansion across its limited range in eastern China. The species' specialized aquatic habitats are being drained, filled, or polluted by industrial runoff and agricultural chemicals. Climate change compounds these pressures by altering precipitation patterns and water levels in the shallow pools and wetlands where this quillwort survives.

Threat summary

Habitat

Isoetes sinensis inhabits shallow freshwater pools, seasonal wetlands, and the margins of small lakes in eastern China's lowland regions. This aquatic quillwort requires clean, nutrient-poor waters with sandy or muddy substrates where it can establish its distinctive rosette of quill-like leaves.

Other threatened species in ISOETACEAE

EN

Gascoyne Quillwort

Isoetes boryana

Declining
VU

Azorean Quillwort

Isoetes azorica

Declining
EN

Greek Quillwort

Isoetes haussknechtii

Unknown
CR

Isoetes hewitsonii

Unknown

Frequently asked questions

Why is Isoetes sinensis classified as Critically Endangered?
Isoetes sinensis 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. Isoetes sinensis faces severe threats from rapid urbanization and agricultural expansion across its limited range in eastern China. The species' specialized aquatic habitats are being drained, filled, or polluted by industrial runoff and agricultural chemicals. Climate change compounds these pressures by altering precipitation patterns and water levels in the shallow pools and wetlands where this quillwort survives.
Where does Isoetes sinensis live?
Isoetes sinensis 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 Isoetes sinensis?
The main threats to Isoetes sinensis 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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