Huntingdonshire - Botanical Society of the British Isles

Appendix 2 Data Deficient Species
A list is provided below of species that would qualify for inclusion in the Rare Plant Register
(excluding County Rare and Scarce Species) but for which we have no recent records (i.e.
post-1990). These species should be urgent priorities for species-specific survey work.
There is now strong reason to believe that Dianthus armeria may have died out, although its
survival as a dormant seed bank cannot be entirely ruled out. Plants originating from
Woodwalton Fen stock are maintained in cultivation at Ramsey Heights.
Species
78
Last Known Sighting
Aphanes australis Slender Parsley-piert 1954-56
Anthemis arvensis Corn Chamomile 1981
Arabis hirsuta Hairy Rock-cress 1974
Artemisia absinthium Wormwood 2009 9
Baldellia ranunculoides Lesser Water-plantain 1975
Berberis vulgaris Barberry 1975
Bidens cernua Nodding Bur-marigold 1974
Callitriche brutia Intermediate Water-starwort 1954
Campanula glomerata Clustered Bellflower 1986
Campanula latifolia Giant Bellflower 1971
Carex binervis Green-ribbed Sedge 1967
Carex divulsa ssp. leersii Many-leaved Sedge 1975
Centaurea cyanus Cornflower 1981
Chenopodium hybridum Maple-leaved Goosefoot 2005 10
Clinopodium ascendens Common Calamint 1974
Comarum palustre Marsh Cinquefoil 1968
Crepis biennis Rough Hawk’s-beard 1983
Dianthus armeria Deptford Pink 1984
Eleocharis acicularis Needle Spike-rush 1986
Epilobium roseum Pale Willowherb 1979
Galeopsis angustifolia Red Hemp-nettle 1980
Gentianella amarella ssp.
amarella
Gymnadenia conopsea sens.
str.
Autumn Gentian 1968
Fragrant Orchid 1985
Helianthemum nummularium Rockrose 1974
Helleborus viridis ssp.
occidentalis
Green Hellebore 1976
Legousia hybrida Venus’s-looking-glass 1977
Linaria repens Pale Toadflax 1981
9 Previously scattered in the fens, the only recent record is a casual roadside occurrence at
Alconbury.
10 While this is a recent record it relates to a brief casual occurrence on a spoil heap in a
supermarket car park, as such it does not merit inclusion in the main Register.