Hieracium portlandicum

Key Details

Taxonomic Groups: Vascular plant > flowering plant > Herbaceous plant
Red List Status: Endangered (Not Relevant) [EN(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 portlandicum
UKSI Recommended Authority: T.C.G.Rich
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: Requires a recovery project to ensure this Endangered Dorset endemic survives. In 2005 was present in 2 locations with 103 mature and vegetative individuals (Rich et al. 2007) but impact of scrub clearance and grazing at Church Ope Cove and Durdle Pier needs assessing and it has become increasingly hard to find at West Weare due to drought.
Question 2: Does recovery/ conservation depend on species-specific actions?
Response: Yes
Justification: Targeted survey required to determine current status and possible reasons for decline. 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: Plenty of apparently suitable habitat present but still very rare.

Species Assessment

Current step on the Species Recovery Curve (SRC): 2. Biological status assessment exists
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: Resurvey of all sites to assess possible reasons for decline, and collect autecological data (vegetation niche, management) to assess conservation requirements.

Action targets: 2. Biological status assessment exists

Action type: Status survey/review

Duration: 1 year

Scale of Implementation: ≤ 5 sites

High priority sites: West Weare, Church Ope Cove

Comments:

Key Action 2

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.