Ribbon-leaved Water-plantain (Alisma gramineum)
Key Details
| Taxonomic Groups: | Vascular plant > flowering plant > Aquatic 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: | Alisma gramineum |
| UKSI Recommended Authority: | Lej. |
| 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: | CR, only 2 sites, and both unreliable. Seedbank-only population should be worked with too. |
| Question 2: | Does recovery/ conservation depend on species-specific actions? |
| Response: | Yes |
| Justification: | Needs action at known sites to maintain populations |
| 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: | Is not associated in England with landscape-wide features |
Species Assessment
| Current step on the Species Recovery Curve (SRC): | 6. Recovery solutions trialled |
| Recovery potential/expectation: | Low - Relict or natural rarity |
| National Monitoring Resource: | Opportunistic - insufficient |
| Species Comments: |
Key Actions
Key Action 1
Proposed Action: Drain Westwood Great Pool and remove successional vegetation from margins
Action targets: 6. Recovery solutions trialled
Action type: Habitat management
Duration: 1 year
Scale of Implementation: 1 site
High priority sites: Westwood Great Pool
Comments:
Key Action 2
Proposed Action: Install fluctuating water-level control structures and regime for this species in suitable locations
Action targets: 6. Recovery solutions trialled
Action type: Habitat management
Duration: 3-5 years
Scale of Implementation: 1 site
High priority sites: Westwood Great Pool
Comments:
Key Action 3
Proposed Action: Drain and survey Fenland drain locations; take some plants into cultivation to produce seed for species recovery work on reintroductions
Action targets: 6. Recovery solutions trialled
Action type: Status survey/review
Duration: 1 year
Scale of Implementation: 1 site
High priority sites: Vernatts Drain, Lincs
Comments:
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.