CRCritically Endangered
Rush Quillwort
Isoetes junciformis
Unknown
Photo: Photo: (c) acressler, some rights reserved (CC BY-NC)
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Habitat
Marine coastal/supratidal· majorWetlands (inland)· major
Conservation measures underway
Species recovery
Other threatened species in ISOETACEAE
Threatened in United States
Frequently asked questions
Why is Rush Quillwort classified as Critically Endangered?
Rush Quillwort 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, per the IUCN Red List assessment recorded in the SpeciesRadar database.
Where does Rush Quillwort live?
Rush Quillwort occurs in United States. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Rush Quillwort?
The main threats to Rush Quillwort are 4.1, 5.3, 7.3, and 8.1. The full IUCN-classified threat record for this species is detailed on the species page.
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