A List of Oxfordshire Rare Plants in Alphabetical Order
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Oxfordshire Rare Plant Register, all species studied, in alphabetical order, 28 April 2015 National Status Oxfordshire status (not complete) Latin name English name (not vice-county) Least Concern Adiantum capillus-veneris Maidenhair Fern RPR Endangered Adonis annua Pheasant’s-eye RPR Waiting List Aethusa cynapium ssp. agrestis Fool's Parsley Not studied Waiting List Agrostemma githago Corn Cockle Introd since 1992 Least Concern Agrostis canina Velvet Bent RPR Least Concern Agrostis curtisii Bristle Bent RPR Least Concern Agrostis vinealis Brown Bent RPR Least Concern Aira caryophyllea Silver Hair-grass RPR Least Concern Aira praecox Early Hair-grass RPR Least Concern Alchemilla filicaulis Hairy Lady’s-mantle RPR Least Concern Alchemilla xanthochlora Pale Lady's-mantle Last in 1988 Least Concern Alisma lanceolatum Narrow-leaved Water-plantain RPR Least Concern Alopecurus aequalis Orange Foxtail RPR Vulnerable Anacamptis morio Green-winged Orchid RPR Data Deficient Anagallis foemina Blue Pimpernel RPR Least Concern Anagallis tenella Bog Pimpernel RPR Introduced since 1500 Anisantha madritensis Compact Brome Introduced Endangered Anthemis arvensis Corn Chamomile RPR Vulnerable Anthemis cotula Stinking Chamomile Not studied Least Concern Anthriscus caucalis Bur Chervil RPR Introduced since 1500 Apera interrupta Dense Silky-bent RPR Least Concern Apera spica-venti Loose Silky-bent RPR Least Concern Aphanes australis Slender Parsley-piert RPR Least Concern Apium graveolens Wild Celery RPR Vulnerable Apium inundatum Lesser Marshwort RPR Europe Protected Apium repens Creeping Marshwort RPR Least Concern Aquilegia vulgaris Columbine Not Scarce Near Threatened Arabis hirsuta Hairy Rock-cress RPR Introduced since 1500 Aristolochia clematitis Birthwort RPR Iconic Extinct in the Wild Arnoseris minima Lamb's Succory Last in 1971 Least Concern Artemisia absinthium Wormwood RPR Least Concern Arum italicum ssp. italicum Italian Lords and Ladies Introduced Least Concern Asperula cynanchia Squinancywort Not Scarce Endangered Astragalus danicus Purple Milk-vetch RPR Least Concern Avenula pratensis Meadow Oat-grass Not Scarce Vulnerable Baldellia ranunculoides Lesser Water-plantain RPR Least Concern Berberis vulgaris Barberry RPR Least Concern Bidens cernua Nodding Bur-marigold RPR Least Concern Blechnum spicant Hard-fern RPR Vulnerable Blysmus compressus Flat-sedge RPR Least Concern Bolboschoenus maritimus Sea Club-rush RPR Near Threatened Briza media Quaking Grass Not studied Least Concern Bromopsis benekenii Lesser Hairy-brome Last in 1992 Extinct in the Wild Bromus interruptus Interrupted Brome Last in 1931 Least Concern Bromus racemosus Smooth Brome Not Scarce Near Threatened Bromus secalinus Rye Brome RPR Critically Endangered Bupleurum rotundifolium Thorow-wax Last in 1979 Least Concern Butomus umbellatus Flowering Rush Not Scarce Least Concern Calamagrostis canescens Purple Small-reed RPR Least Concern Calamagrostis epigejos Wood Small-reed Not Scarce Least Concern Callitriche brutia Intermediate Water-starwort RPR Least Concern Callitriche obtusangula Blunt-fruited Water-starwort RPR Near Threatened Calluna vulgaris Heather RPR Least Concern Campanula latifolia Giant Bellflower RPR Endangered Campanula rapunculus Rampion Bellflower RPR Near Threatened Campanula rotundifolia Harebell Not studied Least Concern Cardamine amara Large Bitter-cress Not Scarce Least Concern Carduus tenuiflorus Slender Thistle RPR Least Concern Carex binervis Green-ribbed Sedge RPR Least Concern Carex caryophyllea Spring-sedge Not Scarce Least Concern Carex demissa Common Yellow-sedge RPR Least Concern Carex dioica Dioecious Sedge RPR Least Concern Carex distans Distant Sedge RPR Least Concern Carex divulsa ssp. divulsa Grey Sedge Not Scarce Least Concern Carex divulsa ssp. leersii Leers' Sedge RPR Near Threatened Carex echinata Star Sedge RPR Near Threatened Carex elata Tufted-sedge RPR Nationally Rare Carex filiformis Downy-fruited Sedge RPR Least Concern Carex hostiana Tawny Sedge RPR Least Concern Carex lepidocarpa Long-stalked Yellow-sedge RPR Least Concern Carex leporina Oval Sedge Not Scarce Near Threatened Carex muricata ssp. muricata Prickly Sedge RPR Least Concern Carex muricata ssp. pairae Prickly Sedge Not Scarce Least Concern Carex oederi Small-fruited Yellow-sedge RPR Least Concern Carex pallescens Pale Sedge RPR Least Concern Carex paniculata Greater Tussock-sedge Not Scarce Least Concern Carex pilulifera Pill Sedge Not Scarce Least Concern Carex pseudocyperus Cyperus Sedge Not Scarce Near Threatened Carex pulicaris Flea Sedge RPR Least Concern Carex rostrata Bottle Sedge RPR Least Concern Carex strigosa Thin-spiked Wood-sedge RPR Vulnerable Carex vesicaria Bladder-sedge RPR Vulnerable Carex vulpina True Fox-sedge RPR Near Threatened Carlina vulgaris Carline Thistle RPR Critically Endangered Carum carvi Caraway Last in 1987 Vulnerable Catabrosa aquatica Water Whorl-grass RPR Least Concern Centaurea cyanus Cornflower RPR Least Concern Centaurium pulchellum Lesser Centaury RPR Endangered Centunculus minimus Chaff-weed Last in 1983 Vulnerable Cephalanthera damasonium White Helleborine RPR Endangered Cephalanthera longifolia Narrow-leaved Helleborine Last in 1970 Near Threatened Cerastium arvense Field Mouse-ear Not studied Least Concern Cerastium diffusum Sea Mouse-ear Last in 1995 Least Concern Cerastium pumilum Dwarf Mouse-ear RPR Least Concern Cerastium semidecandrum Little Mouse-ear Not Scarce Least Concern Ceratocapnos claviculata Climbing Corydalis RPR Least Concern Ceratophyllum demersum Rigid Hornwort Not Scarce Vulnerable Chamaemelum nobile Chamomile Last in 1983 Vulnerable Chenopodium bonus-henricus Good-King-Henry RPR Least Concern Chenopodium ficifolium Fig-leaved Goosefoot RPR Least Concern Chenopodium hybridum Maple-leaved Goosefoot RPR Endangered Chenopodium murale Nettle-leaved Goosefoot Last in 1985 Critically Endangered Chenopodium urbicum Upright Goosefoot Last in 1912 Endangered Chenopodium vulvaria Stinking Goosefoot Last in 1927 Least Concern Chrysosplenium alternifolium Alternate-leaved Golden-saxifrage RPR Least Concern Chrysosplenium oppositifolium Opposite-leaved Golden-saxifrage Not Scarce Vulnerable Cichorium intybus Chicory Not studied Least Concern Cirsium dissectum Meadow Thistle RPR Least Concern Cladium mariscus Great Fen-sedge Last in 1988 Vulnerable Clinopodium acinos Basil Thyme RPR Least Concern Clinopodium ascendens Common Calamint Not Scarce Least Concern Clinopodium calamintha Lesser Calamint RPR Vulnerable Coeloglossum viride Frog Orchid RPR Least Concern Colchicum autumnale Autumn Crocus/Meadow Saffron RPR GB Near Threatened Least Concern Comarum palustre Marsh Cinquefoil Introduced Least Concern Convallaria majalis Lily-of-the-valley Introduced Near Threatened Cruciata laevipes Crosswort Not studied Vulnerable Cuscuta epithymum Dodder RPR Least Concern Cuscuta europaea Greater Dodder RPR Near Threatened Cynoglossum germanicum Green Hound's-tongue RPR Near Threatened Cynoglossum officinale Hound's-tongue RPR Least Concern Cyperus longus Galingale Introduced Least Concern Cystopteris fragilis Brittle Bladder-fern Last in 1995 Least Concern Dactylorhiza incarnata Early Marsh-orchid Not Scarce Least Concern Dactylorhiza maculata Heath-spotted Orchid Not Scarce Least Concern Dactylorhiza purpurella Northern Marsh-orchid 2 records 1981 Least Concern Dactylorhiza traunsteinerioides Narrow-leaved Marsh-orchid RPR Least Concern Danthonia decumbens Heath-grass Not Scarce Vulnerable Daphne mezereum Mezereon RPR Introduced since 1500 Datura stramonium Thorn-apple Introduced Least Concern Descurainia sophia Flixweed RPR Endangered Dianthus armeria Deptford Pink Last in 1981 Vulnerable Dianthus deltoides Maiden Pink RPR Least Concern Diplotaxis tenuifolia Perennial Wall-rocket RPR Least Concern Dipsacus pilosus Small Teasel RPR Least Concern Draba muralis Wall Whitlowgrass Last in 1996 Least Concern Drosera rotundifolia Round-leaved Sundew RPR Least Concern Dryopteris affinis Golden-scaled Male-fern Not Scarce Least Concern Dryopteris carthusiana Narrow-leaved Buckler-fern Not Scarce Least Concern Echium vulgare Viper's-bugloss Not Scarce Near Threatened Eleocharis acicularis Needle Spike-rush Last in 1979 Least Concern Eleocharis multicaulis Many-stalked Spike-rush Last in 1968 Least Concern Eleocharis quinqueflora Few-flowered Spike-rush RPR Least Concern Eleocharis uniglumis Slender Spike-rush RPR Least Concern Eleogiton fluitans Floating Club-rush last in 1980s Least Concern Epilobium lanceolatum Spear-leaved Willowherb Last in 1995 Least Concern Epilobium palustre Marsh Willowherb RPR Least Concern Epilobium roseum Pale Willowherb RPR Least Concern Epipactis leptochila Narrow-lipped Helleborine RPR Near Threatened Epipactis palustris Marsh Helleborine RPR Least Concern Epipactis phyllanthes Green-flowered Helleborine RPR Least Concern Epipactis purpurata Violet Helleborine Not Scarce Critically Endang Epipogium aphyllum Ghost Orchid Last in 1979 Least Concern Equisetum fluviatile Water Horsetail Not Scarce Least Concern Equisetum variegatum Variegated Horsetail RPR Near Threatened Erica cinerea Bell-heather RPR Near Threatened Erica tetralix Cross-leaved Heather RPR Vulnerable Eriophorum angustifolium Common Cottongrass RPR Least Concern Eriophorum latifolium Broad-leaved Cottongrass RPR Near Threatened Erysimum cheiranthoides Treacle-mustard Not studied Vulnerable Euphorbia exigua Dwarf Spurge RPR Least Concern Euphorbia platyphyllos Broad-leaved Spurge RPR Vulnerable Fallopia dumetorum Copse-bindweed RPR Least