CR

Isoetes heldreichii

UnknownCREUCREU

Overview

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

Isoetes heldreichii faces severe threats from habitat destruction due to agricultural expansion and urban development around its limited aquatic habitats in Greece. Water pollution from agricultural runoff and domestic waste significantly degrades the quality of the temporary pools and wetlands where this quillwort survives. Climate change poses an additional threat through altered precipitation patterns that could eliminate the seasonal flooding cycles essential for the species' reproduction and survival.

Threat summary

Habitat

Isoetes heldreichii inhabits temporary pools, seasonal wetlands, and shallow freshwater bodies in Mediterranean regions of Greece. The species requires specific hydrological conditions with seasonal flooding and drying cycles that support its unique reproductive strategy.

Wetlands (inland) - Permanent freshwater lakes· major

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

Threatened in Greece

EN

Trichoferus bergeri

Unknown
VU

Lepiota echinella

Unknown
VU

Copper Shark

Carcharhinus brachyurus

Declining
Luschan's SalamanderEN

Luschan's Salamander

Lyciasalamandra luschani

Declining

Frequently asked questions

Why is Isoetes heldreichii classified as Critically Endangered?
Isoetes heldreichii 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 heldreichii faces severe threats from habitat destruction due to agricultural expansion and urban development around its limited aquatic habitats in Greece. Water pollution from agricultural runoff and domestic waste significantly degrades the quality of the temporary pools and wetlands where this quillwort survives. Climate change poses an additional threat through altered precipitation patterns that could eliminate the seasonal flooding cycles essential for the species' reproduction and survival.
Where does Isoetes heldreichii live?
Isoetes heldreichii occurs in Greece. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Isoetes heldreichii?
The main threats to Isoetes heldreichii 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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