Round-fruited Rush (Juncus compressus)

Key Details

Taxonomic Groups: Vascular plant > flowering plant > Rush
Red List Status: Near Threatened (Not Relevant) [NT(nr)]
D5 Status: Included in the baseline Red List Index for England (Wilkins, Wilson & Brown, 2022)
Section 41 Status: (not listed)
Taxa Included Synonym: (none)
UKSI Recommended Name: Juncus compressus
UKSI Recommended Authority: Jacq.
UKSI Recommended Qualifier: (none specified)
Red List Citation: in Stroh et al., 2014
Notes on taxonomy/listing: (none)

Criteria

Question 1: Does species need conservation or recovery in England?
Response: Yes
Justification: Assessed as VU in England (Stroh et al. 2014), with the threat status based on a decline in occupancy. As a rhizomatous perennial rush of marshes, wet meadows and pastures, it is usually present where the sward is kept short by mowing or grazing. It has a long-lived seed bank, and appears to be capable of dispersing to new locations, either via birds or, if there is some connectivity, via water.
Question 2: Does recovery/ conservation depend on species-specific actions?
Response: Yes
Justification: The species would appear to have been lost from sites where grazing has ceased, or is insufficient to create areas of short turf and periodic disturbance. Also sites where the hydrological regime has altered.
Question 3: At a landscape scale, would the species benefit from untargeted habitat management to increase habitat mosaics, structural diversity, or particular successional stages?
Response: Yes
Justification: Juncus compressus would appear capable of dispersing to new locations, and especially newly created wet grasslands with livestock grazing, and also the margins of reservoirs.

Species Assessment

Current step on the Species Recovery Curve (SRC): 5. Remedial action identified
Recovery potential/expectation: Medium-high
National Monitoring Resource: Opportunistic - sufficient
Species Comments:

Key Actions

Key Action 1

Proposed Action: Reinstate an appropriate grazing regime (cattle) at locations where the species has not been recorded in the recent past, but for which there are records from the late 20th century.

Action targets: 5. Remedial action identified

Action type: Habitat management

Duration: 3-5 years

Scale of Implementation: ≤ 20 sites

High priority sites: Sites can be identified using the BSBI database and speaking with Vice-County Recorders

Comments:

Key Action 2

Proposed Action: Contact landowners in close proximity to the established distribution to encourage the creation of new wetlands, ensuring that the design of the wetland incorporates drawdown zones.

Action targets: 8. Species recovering

Action type: Habitat creation

Duration: >10 years

Scale of Implementation: ≤ 20 sites

High priority sites: To be determined as part of the recovery project

Comments:

Key Action 3

Proposed Action: Create scrapes/drawdown zones within wetlands that are cattle grazed are located within core areas of the distribution of Juncus compressus.

Action targets: 8. Species recovering

Action type: Habitat creation

Duration: 2 years

Scale of Implementation: Unknown

High priority sites: To be determined, but centered on the core areas of current distribution of this species.

Comments:

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Acknowledgment:
Data used on this website are adapted from Threatened species recovery actions 2025 baseline (JP065): Technical report and spreadsheet user guide (Natural England, 2025). Available here.