Durham Rare Plant Register - Botanical Society of the British Isles

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ContentsIntroduction to the rare plants registerNotes on plant distribution and protectionThe individual species accounts in alphabetical orderCover picture—Rock Whitebeam Sorbus rupicola at the River Tees
IntroductionMany counties are in the process of compiling a County Rare Plant Register,to assist in the study and conservation of their rare species. The process ismade easier if the county has a published Flora and a strong BiologicalRecords Centre, and Durham is fortunate to have Gordon Graham's Flora andthe Durham Wildlife Trust’s “Recorder" system. We also have a Biodiversityproject, based at Rainton Meadows, to carry out conservation projects toprotect the rare species. The purpose of this document is to introduce theRare Plant Register and to give an account of the information that it holds,and the species to be included. It is then hoped that this will act as a stimulusfor local botanists to make special efforts to improve the database byrecording these species. The register will be used to increase ourunderstanding of the status and distribution of the rare species, and to aid andpromote their conservation.This account is based mainly on the "Flora and Vegetation of County Durham",the recording effort that has gone into the Botanical Society of the British Isles"Atlas 2000" project, and the considerable recent survey effort at the DurhamBiodiversity Partnership. New records, amendments and updates would bevery welcome.Species CoveredTwo groups of vascular plant species are included. Firstly, the nationally rarespecies listed in the BSBI/IUCN list. These are classified as “CriticallyEndangered”, “Endangered”, “Near Threatened”, “Rare”, “Vulnerable” and“Scarce”. Durham has an exceptionally large number of these, 136 in all,because of the importance of the Teesdale flora. These species are mainlythose that were listed in the “Red Data Book “and in “Scarce Plants in Britain”.These two publications give ecological information on the species covered,which will not be repeated here.Secondly, to cover species of local rather than national importance, a speciesqualifies as “locally rare” if it has been recorded in three or less sites in thecounty. This would include about 70 species in Durham. Finally, “locallyscarce” species are defined as having less than 15 sites in the county. Thesespecies are listed below, not,in this edition, covered in the main text.For the purposes of the current edition, I am excluding some casual, hortaland/or introduced species, and some species that have not been recorded forsome time. The lists would otherwise, for example, include many long-extinctballast aliens.“Critical“species of Hieracium, Taraxacum and Rubus are not included in thisedition.A "site" has also been defined as a "Wells" site. A "Wells" site is a floatingkilometre square, so that, for example, most of the rare species in HawthornDene have a single Wells site there, even though plants may be on both sidesof a kilometre grid line or may be present in two "tetrads". The number ofWells sites gives a better indication of a plant's scarcity.
Page 1: Durham Rare Plant Register2010Cover
Page 5 and 6: National CategoriesCritically Endan
Page 7 and 8: Scientific Name English Name Number
Page 9 and 10: Being within a designated site is n
Page 11 and 12: Deficient Site ProtectionSeveral sp
Page 13 and 14: GatesheadNational• Wood Barley Ho
Page 15 and 16: • Wild Clary Salvia verbenacea ha
Page 17 and 18: DarlingtonNational• Tubular Water
Page 19 and 20: Alchemilla acutilobaStarry Lady’s
Page 21 and 22: Wear SitesA689, W ofStanhope,southv
Page 23 and 24: Alchemilla glomerulansClustered Lad
Page 25 and 26: Alchemilla monticolaVelvet Lady’s
Page 27 and 28: 26‐Aug‐06NY9619725172NY96225030
Page 29 and 30: Alchemilla subcrenataLarge-toothed
Page 31 and 32: Actaea spicataNational StatusCounty
Page 33 and 34: Astralagus danicusNational StatusCo
Page 35 and 36: Bartsia alpinaNational StatusCounty
Page 37 and 38: 30‐Jun‐09NY84883107Beck bank So
Page 39 and 40: Carex aquatilisNational StatusCount
Page 41 and 42: Carex diandraNational StatusCounty
Page 43 and 44: Chenopodium bonus-henricusGood King
Page 45 and 46: Crepis mollisNational StatusCounty
Page 47 and 48: Dactylorhiza virideNational StatusC
Page 49 and 50: Daphne mezereumMezereonDryas octape
Page 51 and 52: Epipactis atrorubensDark Red Helleb
Page 53 and 54:
Equisetum pratenseShady HorsetailNa
Page 55 and 56:
Euphrasia officinalis monticolaAn E
Page 57 and 58:
Genista anglicaNational StatusCount
Page 59 and 60:
333011/06/93 NY844314 Harwood Beck
Page 61 and 62:
Gentianella campestrisField Gentian
Page 63 and 64:
Gymnocarpium robertianumLimestone O
Page 65 and 66:
Helleborus foetidusStinking Hellebo
Page 67 and 68:
Hordeum marinumSea BarleyNational S
Page 69 and 70:
Juncus alpinoarticulatus Alpine Rus
Page 71 and 72:
Upland Sites1975 NZ075245 Arngill B
Page 73 and 74:
Kobresia simpliusculaFalse SedgeKob
Page 75 and 76:
Linum perenne anglicumNational Stat
Page 77 and 78:
Lycopodium clavatumStags-hornClubmo
Page 79 and 80:
Minuartia strictaTeesdale SandwortM
Page 81 and 82:
Muscari neglectumGrape HyacinthNati
Page 83 and 84:
Myrriophyllum verticillatumWhorled
Page 85 and 86:
Noccaea caerulescensAlpine Penny Cr
Page 87 and 88:
Ophrys insectiferaNational StatusCo
Page 89 and 90:
Pilularia globuliferaPillwortNation
Page 91 and 92:
Platanthera chloranthaGreater Butte
Page 93 and 94:
Polystichum lonchitisHolly FernNati
Page 95 and 96:
Potentilla fruticosa Shrubby Cinque
Page 97 and 98:
Primula farinosaNational StatusCoun
Page 99 and 100:
NY851298NY85029607/08/09 NY851299 W
Page 101 and 102:
Pyrola mediaNational StatusCounty S
Page 103 and 104:
Ruppia cirrhosaSpiral TasselweedSax
Page 105 and 106:
Sedum villosumNational StatusCounty
Page 107 and 108:
Jun‐78 NZ328369 Coxhoe Davis, Dr
Page 109 and 110:
Dales sites09‐Sep‐61 NY840428 B
Page 111 and 112:
Stellaria palustris Marsh Stitchwor
Page 113 and 114:
Tilia platyphyllosNational StatusCo
Page 115 and 116:
Trichophorum cespitosumNorthern Dee
Page 117 and 118:
Viola rupestrisNational StatusCount
Page 119 and 120:
Woodsia ilvensis, Oblong WoodsiaZos
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Durham Rare Plant Register - Botanical Society of the British Isles

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