Marsh Saxifrage (Saxifraga hirculus)

Key Details

Taxonomic Groups: Vascular plant > flowering plant > Herbaceous plant
Red List Status: Vulnerable (Not Relevant) [VU(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: Saxifraga hirculus
UKSI Recommended Authority: L.
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: The status of this plant is rather complex. At the monad level its distribution is probably stable; since 2000 it has not been recorded in 8 monads but has been found new in 12. A detailed survey in 2009 (Roberts, 2010) revealed 450000 ramets within around 40 discrete colonies, but with some localised declines due to the removal of sheep grazing in fenced areas/enclosures and moorland gripping. However, most populations seemed to be flourishing possibly due to relaxation of grazing following the decline in sheep numbers in the North Pennines following Foot-and -Mouth disease in 2001. Prior to that many populations had been over-grazed. As a consequence, Stroh et al. (2014) assessed it as LC for England. However, given the uncertainty over numbers of genets (versus ramets) we have included actions for its recovery here.
Question 2: Does recovery/ conservation depend on species-specific actions?
Response: Yes
Justification: This is a highly localised species that is reliant on lightly-grazed upland mires in areas extensively grazed by sheep. Lack of grazing seems to be a key threat to some populations (due to fencing) whereas the former threat from overgrazing seems to have declined due to relaxation of numbers in the North Pennines.
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: No
Justification: This species would not benefit from untargeted management

Species Assessment

Current step on the Species Recovery Curve (SRC): 2. Biological status assessment exists
Recovery potential/expectation: Low - Life history factor/s
National Monitoring Resource: Structured - sufficient
Species Comments:

Key Actions

Key Action 1

Proposed Action: A repeat survey of all populations following the method used in Roberts (2010) is needed to assess whether current grazing levels are too low/high to sustain populations in the longer term.

Action targets: 2. Biological status assessment exists

Action type: Status survey/review

Duration: 1 year

Scale of Implementation: ≤ 20 sites

High priority sites: All sites covered by Roberts (2010) plus sites discovered since then.

Comments:

Key Action 2

Proposed Action: Removal of exclosures / increasing grazing levels in areas where population declining due to overgrowth of more competitive species.

Action targets: 5. Remedial action identified

Action type: Habitat management

Duration: >10 years

Scale of Implementation: ≤ 5 sites

High priority sites: Knock Ore Gill, Johnny's Flush, Great Shunner Fell

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.