Thick-leaved Hawkweed (Hieracium dentulum)
Key Details
| Taxonomic Groups: | Vascular plant > flowering plant > Herbaceous plant |
| 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: | Hieracium dentulum |
| UKSI Recommended Authority: | (E.F.Linton) 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: | There is very little information on this poorly known British endemic recorded historically in 11 locations in Staffordshire and Derbyshire. It has not been refound in any Yorkshire locations (Jones 2014), or at Far Arnside in 2022. It was last recorded in Wales in 1969. The records suggest decline, but it is Data Deficient in its key geographic area, and so requires a survey to assess threats and priorities. |
| Question 2: | Does recovery/ conservation depend on species-specific actions? |
| Response: | Yes |
| Justification: | Targeted survey required to determine requirements. No seed held in 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: | Yes |
| Justification: | Would benefit from reduction in grazing limestone areas at landscape scale in Peak District |
Species Assessment
| Current step on the Species Recovery Curve (SRC): | 2. Biological status assessment exists |
| Recovery potential/expectation: | Unknown |
| National Monitoring Resource: | Opportunistic - insufficient |
| Species Comments: | few specialist hawkweed surveyors |
Key Actions
Key Action 1
Proposed Action: Survey of all sites to asses 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: 2 years
Scale of Implementation: ≤ 20 sites
High priority sites:
Comments: Medium priority for continued action amongst hawkweeds
Key Action 2
Proposed Action: Collect English seed for Millennium Seed Bank
Action targets: 5. Remedial action identified
Action type: Ex situ conservation
Duration: 1 year
Scale of Implementation: ≤ 5 sites
High priority sites:
Comments: Coordinate with Millennium Seed Bank
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
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.