Equal-toothed Hawkweed (Hieracium aequiserratum)

Key Details

Taxonomic Groups: Vascular plant > flowering plant > Herbaceous plant
Red List Status: Critically Endangered (Not Relevant) [CR(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: Hieracium aequiserratum
UKSI Recommended Authority: P.D.Sell
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: Critically Endangered NW England endemic, very precarious and management at Barras required. Only 46 individuals are known from Barras (6 plants) and Cam Fell (40 plants), no population data at Caperby (2002). Gone from two sites. Regarded in 2022 as stable in both extant sites (owner aware at Barras).
Question 2: Does recovery/ conservation depend on species-specific actions?
Response: Yes
Justification: Ex situ conservation action under way since 2016 with a small scale seed cultivation project by B. Burrow/Natural England (no detailed conservation action plan seen). Seed held in Millennium Seed Bank.
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: Given small population, wind-dispersed seeds and specific niche on limestone cliffs, unlikely to spread as surrounding areas largely grazed.

Species Assessment

Current step on the Species Recovery Curve (SRC): 3. National Monitoring Plan agreed and implemented
Recovery potential/expectation: Low - Relict or natural rarity
National Monitoring Resource: Opportunistic - insufficient
Species Comments: few specialist hawkweed surveyors

Key Actions

Key Action 1

Proposed Action: Continue funding existing Natural England recovery project

Action targets: 5. Remedial action identified

Action type: Ex situ conservation

Duration: 3-5 years

Scale of Implementation: 1 site

High priority sites: Barras

Comments: Seed in Millennium Seed Bank; medium priority for action amongst hawkweeds

Key Action 2

Proposed Action: Action at Barras Station for in situ conservation could be to remove trees and scrub from old railway line to increase open rock habitat and ensure site is not grazed during flowering/fruiting season, and remove invasive Hieracium grandidens. Cam Fell cliffs are probably OK but might benefit from reduction in sheep grazing (to be assessed).

Action targets: 5. Remedial action identified

Action type: Habitat management

Duration: 3-5 years

Scale of Implementation: ≤ 5 sites

High priority sites: Barras

Comments: Seed in Millennium Seed Bank; medium priority for action amongst hawkweeds

Key Action 3

Proposed Action: Promote awareness of the group amongst landowners, understanding of conservation requirements amongst conservation professionals and identification skills amongst field botanists e.g. via BSBI training resources and workshops

Action targets: 5. Remedial action identified

Action type: Advice & support

Duration: 3-5 years

Scale of Implementation: ≤ 100 sites

High priority sites:

Comments: generic action

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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.