| Abies grandis | Giant Fir | 1998 Handcross W Sussex |
| Achillea ptarmica | Sneezewort | 1998 West Yorkshire |
| Aconitum x cammarum | Hybrid Monk's-hood | 1998 Shropshire |
| Agrimonia procera | Fragrant Agrimony | 1998 West Yorkshire |
| Ajuga chamaepitys | Ground-pine | 1998 Surrey |
| Ajuga repens | Bugle | 1998 New Forest |
| Alchemilla minima | Lady's Mantle | 1998 Ingleborough |
| Alchemilla xanthochlora | Lady's Mantle | 1998 West Yorkshire |
| Allium oleraceum | Field Garlic | 1998 Shropshire |
| Allium paradoxum | Few-flowered Garlic | 1998 New Forest |
| Allium scorodoprasum | Sand Leek | 1998 U. Wharfedale |
| Allium scorodoprasum | Sand Leek | 1998 Teesside |
| Allium vineale | Crow Garlic | 1998 Shropshire |
| Alstroemeria aurea | Peruvian Lily | 1998 Shropshire |
| Ammophila arenaria | Marram Grass | 1998 Teesside |
| Amsinckia micrantha | Common Fiddleneck | 1998 Guildford, Surrey |
| Anacamptis pyramidalis | Pyramidal Orchid | 1998 Shropshire |
| Anacamptis pyramidalis | Pyramidal Orchid | 1998 Surrey |
| Anemone nemorosa | Wood Anemone | 1998 New Forest |
| Angelica archangelica | Garden Angelica | 1998 Surrey |
| Anthoxanthum odoratum | Sweet Vernal-grass | 1998 New Forest |
| Anthyllis vulneraria | Kidney Vetch | 1998 Surrey |
| Antirrhinum majus | Snapdragon | 1998 Teesside |
| Apium graveolens | Wild Celery | 1998 Teesside |
| Apium inundatum | Lesser Marshwort | 1998 West Yorkshire |
| Aquilegia vulgaris | Columbine | 1998 U. Wharfedale |
| Arabidopsis thaliana | Thale Cress | 1998 New Forest |
| Arabis hirsuta | Hairy Rock Cress | 1998 U. Wharfedale |
| Arctium minus ssp pubens | Lesser Burdock | 1998 Shropshire |
| Arenaria norvegica ssp. anglica | English Sandwort | 1998 Ingleborough |
| Arenaria serpyllifolia | Thyme-leaved Sandwort | 1998 Shropshire |
| Asarum europaeum | Asarabacca | 1998 New Forest |
| Asperula cynanchica | Squinancywort | 1998 Surrey |
| Asplenium trichomanes | Maidenhair Spleenwort | 1998 New Forest |
| Astragalus danicus | Purple Milk-vetch | 1998 Teesside |
| Atropa belladonna | Deadly Nightshade | 1998 Surrey |
| Azolla filiculoides | Water Fern | 1998 Somerset |
| Bergina crassifolia | Elephant-ears | 1998 Teesside |
| Berteroa incana | (Hoary Alison | 1998 Surrey |
| Betula pubescens | Downy Birch | 1998 U. Wharfedale |
| Blackstonia perfoliata | Yellow-wort | 1998 Shropshire |
| Blackstonia perfoliata | Yellow-wort | 1998 Teesside |
| Blechnum spicant | Hard-fern | 1998 West Yorkshire |
| Blysmus compressus | Flat Sedge | 1998 U. Wharfedale |
| Bolboschoenus maritimus | Sea Club-rush | 1998 Teesside |
| Borago officinalis | Borage | 1998 Surrey |
| Brassica nigra | Black Mustard | 1998 Shropshire |
| Buddleja davidii | Butterfly-bush | 1998 Surrey |
| Buddleja globosa | Orange-ball-tree | 1998 Surrey |
| Buddleja x weyeriana | Weyer's Butterfly-bush | 1998 Surrey |
| Bupleurum baldense | Small Hare's-ear | 1998 Surrey |
| Cakile maritima | Sea Kale | 1998 Thorpeness |
| Calamagrostis epigejos | Wood Small Reed | 1998 Shropshire |
| Calluna vulgaris | Heather | 1998 Dorset |
| Caltha palustris | Marsh Marigold | 1998 New Forest |
| Campanula latifolia | Giant Bellflower | 1998 West Yorkshire |
| Campanula poscharskyana | Trailing Bellflower | 1998 Surrey |
| Cardamine pratensis | Cuckooflower | 1998 New Forest |
| Carduus nutans | Musk Thistle | 1998 Shropshire |
| Carex acuta | Slender Tufted Sedge | 1998 Shropshire |
| Carex arenaria | Sand Sedge | 1998 Teesside |
| Carex capillaris | Hair Sedge | 1998 Ingleborough |
| Carex caryophyllea | Spring Sedge | 1998 New Forest |
| Carex digitata | Fingered Sedge | 1998 Shropshire |
| Carex disticha | Brown Sedge | 1998 New Forest |
| Carex divisa | Divided Sedge | 1998 Somerset |
| Carex elongata | Elongated Sedge | 1998 Shropshire |
| Carex extensa | Long-bracted Sedge | 1998 Somerset |
| Carex hirta | Hairy Sedge | 1998 Teesside |
| Carex hostiana | Tawny Sedge | 1998 Dorset |
| Carex humilis | Dwarf Sedge | 1998 Somerset |
| Carex montana | Soft-leaved Sedge | 1998 New Forest |
| Carex nigra | Common Sedge | 1998 New Forest |
| Carex ornithopoda | Bird's-foot Sedge | 1998 Derbyshire |
| Carex panacea | Carnation Sedge | 1998 U. Wharfedale |
| Carex paniculata | Greater Tussock Sedge | 1998 New Forest |
| Carex pendula | Pendulous Sedge | 1998 New Forest |
| Carex pilulifera | Pill Sedge | 1998 West Yorkshire |
| Carex pseudocyperus | Cyperus Sedge | 1998 Shropshire |
| Carex remota | Remote Sedge | 1998 Shropshire |
| Carex riparia | Greater Pond-sedge | 1998 Teesside |
| Carex riparia | Greater Pond Sedge | 1998 New Forest |
| Carex vesicaria | Bladder Sedge | 1998 West Yorkshire |
| Carex viridula ssp oedicarpa | Common Yellow Sedge | 1998 U. Wharfedale |
| Carex viridula ssp. brachyrrhyncha | Long-stalked Yellow Sedge | 1998 U. Wharfedale |
| Carlina vulgaris | (Carline Thistle | 1998 Shropshire |
| Carlina vulgaris | Carline Thistle | 1998 Teesside |
| Carpinus betulus | Hornbeam | 1998 New Forest |
| Catabrosa aquatica | Water Whorl-grass | 1998 Guildford, Surrey |
| Catapodium marinum | Sea Fern-grass | 1998 Teesside |
| Catapodium rigidum | Fern Grass | 1998 Thorpeness |
| Centaurea x moncktonii (C jacea x C nigra) | Hybrid Knapweed | 1998 Teesside |
| Centaurium erythraea | Common Centaury | 1998 Shropshire |
| Centaurium erythraea | Common Centaury | 1998 Somerset |
| Centaurium pulchellum | Lesser Centaury | 1998 Somerset |
| Cerastium arvense | Field Mouse-ear | 1998 Teesside |
| Cerastium arvense | Field Mouse-ear | 1998 New Forest |
| Cerastium semidecandrum | Little Mouse-ear | 1998 New Forest |
| Cerastium tomentosum | Snow-in-summer | 1998 Teesside |
| Ceratochloa carinata | California Brome | 1998 Surrey |
| Chaenorhinum minus | Small Toadflax | 1998 Bredon Worcs |
| Chamaemelum nobile | Chamomile | 1998 New Forest |
| Chrysosplenium oppositifolium | Opposite-leaved Golden-saxifrage | 1998 New Forest |
| Cicerbita macrophylla | Common Blue Sowthistle | 1998 Guildford, Surrey |
| Cichorium intybus | Chicory | 1998 Teesside |
| Cirsium acaule | Dwarf Thistle | 1998 Shropshire |
| Cirsium eriophorum | Woolly Thistle | 1998 Shropshire |
| Cirsium heterophyllum | Melancholy Thistle | 1998 U. Wharfedale |
| Cirsium heterophyllum | Melancholy Thistle | 1998 West Yorkshire |
| Claytonia sibirica | Pink Purslane | 1998 New Forest |
| Clinopodium acinos | Basil Thyme | 1998 Bredon Worcs |
| Clinopodium ascendens | Common Calamint | 1998 Bredon Worcs |
| Clinopodium ascendens | Common Calamint | 1998 West Yorkshire |
| Clinopodium vulgare | Wild Basil | 1998 Bredon Worcs |
| Colutea x media | Orange Bladder-senna | 1998 Teesside |
| Convallaria majalis | Lily-of-the-Valley | 1998 U. Wharfedale |
| Corydalis solida | Bird-in-a-bush | 1998 New Forest |
| Cotoneaster bullatus | Hollyberry Cotoneaster | 1998 Surrey |
| Cotoneaster dielsianus | Diels' Cotoneaster | 1998 Guildford, Surrey |
| Cotoneaster lacteus | Late Cotoneaster | 1998 Surrey |
| Cotoneaster rehderi | Bullate Cotoneaster | 1998 Guildford, Surrey |
| Cotoneaster simonsii | Himalayan Cotoneaster | 1998 Surrey |
| Cotoneaster x watereri | Waterer?s Cotoneaster | 1998 Surrey |
| Crassula tillaea | Mossy Stonecrop | 1998 Thorpeness |
| Crassula tillaea | Mossy Stonecrop | 1998 New Forest |
| Crepis vesicaria | Beaked Hawk's-beard | 1998 New Forest |
| Crocosmia paniculata | Aunt-Eliza | 1998 Somerset |
| Cruciata laevipes | Crosswort | 1998 West Yorkshire |
| Cuscuta epithymum | Dodder | 1998 Dorset |
| Cuscuta europaea | Greater Dodder | 1998 Bredon Worcs |
| Cymbalaria pallida | Italian Toadflax | 1998 U. Wharfedale |
| Cystopteris fragilis | Brittle Bladder Fern | 1998 West Yorkshire |
| Cytisus scoparius | Broom | 1998 New Forest |
| Dactylorhiza fuchsii | Common Spotted Orchid | 1998 West Yorkshire |
| Dactylorhiza fuschii | Common Spotted Orchid | 1998 Surrey |
| Dactylorhiza praetermissa | Southern Marsh Orchid | 1998 Thorpeness |
| Daphne laureola | Spurge-laurel | 1998 Shropshire |
| Daphne mezereum | Mezereon | 1998 Derbyshire |
| Darmera peltata | Indian Rhubarb | 1998 Teesside |
| Deschampsia cespitosa | Tufted Hair-grass | 1998 Shropshire |
| Dianthus plumarius | Wild Pink | 1998 West Yorkshire |
| Diplotaxis tenuifolia | Perennial Wall Rocket | 1998 Teesside |
| Diplotaxis tenuifolia | Perennial Wall-rocket | 1998 Somerset |
| Dipsacus pilosus | Small Teasel | 1998 Shropshire |
| Draba muralis | Wall Whitlowgrass | 1998 Derbyshire |
| Dryas octopetala | Mountain Avens | 1998 U. Wharfedale |
| Dryopteris affinis ssp. borreri | Scaly Male-fern | 1998 Handcross W Sussex |
| Dryopteris oreades | Mountain Male Fern | 1998 West Yorkshire |
| Dryopteris submontana | Rigid Buckler Fern | 1998 Ingleborough |
| Elymus caninus | Bearded Couch | 1998 Shropshire |
| Elymus caninus | Bearded Couch | 1998 Teesside |
| Elytrigia juncea | Sea Couch | 1998 Teesside |
| Elytrigia repens | Common Couch | 1998 Teesside |
| Epilobium brunnescens | New Zealand Willowherb | 1998 West Yorkshire |
| Epilobium hirsutum | Great Willowherb | 1998 Shropshire |
| Epilobium montanum | Broad-leaved Willowherb | 1998 Shropshire |
| Epilobium tetragonum | Square-stemmed Willowherb | 1998 Teesside |
| Epilobium x erroneum | Hybrid Willowherb | 1998 Shropshire |
| Epipactis atrorubens | Dark-red Helleborine | 1998 Derbyshire |
| Equisetum palustre | Marsh Horsetail | 1998 New Forest |
| Erica tetralix | Cross-leaved Heath | 1998 West Yorkshire |
| Erodium cicutarium | Common Stork's-bill | 1998 Teesside |
| Erodium cicutarium | Common Stork's-bill | 1998 New Forest |
| Erodium lebelii | Sticky Stork's-bill | 1998 Thorpeness |
| Erodium maritimum | Sea Stork's-bill | 1998 Somerset |
| Erophila verna | Common Whitlowgrass | 1998 New Forest |
| Eryngium maritimum | Sea Holly | 1998 Thorpeness |
| Euonymus europaeus | Spindle | 1998 U. Wharfedale |
| Euphorbia amygdaloides | Wood Spurge | 1998 New Forest |
| Euphorbia exigua | Dwarf Spurge | 1998 Bredon Worcs |
| Euphorbia x pseudovirgata | Twiggy Spurge | 1998 Surrey |
| Euphrasia nemoralis | Eyebright | 1998 Teesside |
| Euphrasia nemorosa | Eyebright | 1998 Shropshire |
| Euphrasia nemorosa | Eyebright | 1998 West Yorkshire |
| Euphrasia nemorosa x Euphrasia pseudokerneri | Eyebright | 1998 Surrey |
| Euphrasia pseudokerneri | Eyebright | 1998 Surrey |
| Fallopia dumetorum | Copse Bindweed | 1998 Guildford, Surrey |
| Fallopia sachalinensis | Giant Knotweed | 1998 Teesside |
| Festuca altissima | Wood Fesccue | 1998 Derbyshire |
| Festuca arundinacea | Tall Fescue | 1998 Teesside |
| Festuca gigantea | Giant Fescue | 1998 Shropshire |
| Festuca gigantea | Giant Fescue | 1998 Teesside |
| Festuca rubra | Red Fescue | 1998 Somerset |
| Filago minima | Small Cudweed | 1998 New Forest |
| Filago pyramidata | Broad-leaved Cudweed | 1998 Surrey |
| Filipendula kamtschatica | Giant Meadowsweet | 1998 Teesside |
| Filipendula vulgaris | Dropwort | 1998 Surrey |
| Fragaria vesca | Wild Strawberry | 1998 New Forest |
| Gaillardia x grandiflora | Blanket-flower | 1998 Somerset |
| Galega officinalis | Goat's Rue | 1998 Surrey |
| Galeopsis bifida | Lesser Hempnettle | 1998 Shropshire |
| Galium odoratum | Woodruff | 1998 U. Wharfedale |
| Galium odoratum | Woodruff | 1998 Shropshire |
| Galium sterneri | Limestone Bedstraw | 1998 U. Wharfedale |
| Galium verum | Lady's Bedstraw | 1998 Shropshire |
| Galium verum | Lady's Bedstraw | 1998 Teesside |
| Galium verum | Lady's Bedstraw | 1998 West Yorkshire |
| Galium x pomeranicum (G. verum x G. mollugo) | Hybrid Bedstraw | 1998 Shropshire |
| Genianella anglica | Early Gentian | 1998 Surrey |
| Genista tinctoria | Dyer's Greenweed | 1998 Shropshire |
| Gentianella amarella | Autumn Gentian | 1998 Shropshire |
| Geranium nodosum | Knotted Crane's-bill | 1998 Shropshire |
| Geranium pratense | Meadow Crane's-bill | 1998 Bredon Worcs |
| Geranium robertianum var. album | White Herb Robert | 1998 Surrey |
| Geranium rotundifolium | Round-leaved Crane's-bill | 1998 Surrey |
| Geranium sanguineum | Bloody Crane's-bill | 1998 U. Wharfedale |
| Geranium sanguineum | Bloody Crane's-bill | 1998 Teesside |
| Geranium sanguineum | Bloody Crane's-bill | 1998 Derbyshire |
| Geranium sylvaticum | Wood Crane's-bill | 1998 U. Wharfedale |
| Geranium sylvaticum | Wood Crane's-bill | 1998 West Yorkshire |
| Geum rivale | Water Avens | 1998 New Forest |
| Glaucium flavum | Yellow Horned Poppy | 1998 Thorpeness |
| Glechoma hederacea | Ground-ivy | 1998 New Forest |
| Glyceria declinata | Small Sweet Grass | 1998 Shropshire |
| Gnaphalium uliginosum | Marsh Cudweed | 1998 Shropshire |
| Groenlandia densa | Opposite-leaved Pondweed | 1998 Bredon Worcs |
| Gymnadenia conopsea | Fragrant Orchid | 1998 Surrey |
| Gymnocarpium robertianum | Limestone Fern | 1998 Ingleborough |
| Gymnocarpium robertianum | Limestone Fern | 1998 Derbyshire |
| Hedera helix ssp. hibernica | Atlantic Ivy | 1998 Surrey |
| Helianthemum apenninum | White Rock-rose | 1998 Somerset |
| Helleborus foetidus | Stinking Hellebore | 1998 U. Wharfedale |
| Heracleum mantegazzianium | Giant Hogweed | 1998 Teesside |
| Heracleum mantegazzianum | Giant Hogweed | 1998 New Forest |
| Hieracium eboracense | Hawkweed | 1998 Teesside |
| Hieracium prenanthoides | Hawkweed | 1998 Derbyshire |
| Hieracium vulgatum | Hawkweed | 1998 West Yorkshire |
| Hippophae rhamnoides | Sea Buckthorn | 1998 Somerset |
| Hippuris vulgaris | Mare's-tail | 1998 Teesside |
| Hirschfeldia incana | Hoary Mustard | 1998 Somerset |
| Holodiscus discolour | Oceanspray | 1998 Guildford, Surrey |
| Honckenya peploides | Sea Sandwort | 1998 Teesside |
| Hordelymus europaeus | Wood Barley | 1998 Shropshire |
| Hordeum marinum | Sea Barley | 1998 Somerset |
| Hottonia palustris | Water Violet | 1998 New Forest |
| Hydrocotyle palustris | Marsh Pennywort | 1998 Teesside |
| Hydrocotyle vulgaris | Marsh Pennywort | 1998 West Yorkshire |
| Hymenophyllum tunbridgense | Tunbridge Filmy-fern | 1998 Handcross W Sussex |
| Hyoscyamus niger | Henbane | 1998 Surrey |
| Hypericum montanum | Pale St John's-wort | 1998 Somerset |
| Hypericum pulchrum | Slender St John's Wort | 1998 West Yorkshire |
| Hypericum tetrapterum | Square-stalked St John's-wort | 1998 Teesside |
| Inula conyzae | Ploughman's-spikenard | 1998 Bredon Worcs |
| Inula conyzae | Ploughman's Spikenard | 1998 Shropshire |
| Inula conyzae | Ploughman's Spikenard | 1998 Teesside |
| Iris foetidissima | Stinking Iris | 1998 U. Wharfedale |
| Isolepis setacea | Bristle Club-rush | 1998 Teesside |
| Juncus acutus | Sharp Rush | 1998 Somerset |
| Juncus foliosus | Leafy Rush | 1998 Dorset |
| Juncus gerardii | Salt-marsh Rush | 1998 Teesside |
| Juncus maritimus | Sea Rush | 1998 Somerset |
| Juncus subulatus | Somerset Rush | 1998 Somerset |
| Keoleria cristata | Crested Hair-grass | 1998 Thorpeness |
| Keoleria vallesiana | Somerset Hair-grass | 1998 Somerset |
| Kickxia elatine | Sharp-leaved Fluellen | 1998 Bredon Worcs |
| Kickxia elatine | Sharp-leaved Fluellen | 1998 Shropshire |
| Kickxia spuria | Round-leaved Fluellen | 1998 Bredon Worcs |
| Lactuca virosa | Great Lettuce | 1998 Teesside |
| Lamiastrum galeobdolon ssp. montanum | Yellow Archangel | 1998 New Forest |
| Lapsana communis ssp. intermedia | Intermediate Nipplewort | 1998 Surrey |
| Lathraea squamaria | Toothwort | 1998 New Forest |
| Lathyrus aphaca | Yellow Vetchling | 1998 Surrey |
| Lathyrus japonicus | Sea Pea | 1998 Thorpeness |
| Lathyrus latifolius | Broad-leaved Everlasting-pea | 1998 Teesside |
| Lathyrus latifolius | Broad-leaved Everlasting Pea | 1998 Surrey |
| Lathyrus nissolia | (Grass Vetchling | 1998 Surrey |
| Legousia hybrida | Venus's-looking Glass | 1998 Bredon Worcs |
| Lemna minor | Common Duckweed | 1998 Somerset |
| Lemna minuta | Lesser Duckweed | 1998 Somerset |
| Lemna trisulca | Ivy-leaved Duckweed | 1998 Somerset |
| Leontodon saxatilis | Lesser Hawkbit | 1998 Teesside |
| Leontodon saxatilis | Lesser Hawkbit | 1998 Thorpeness |
| Leontodon saxatilis | Lesser Hawkbit | 1998 West Yorkshire |
| Lepidium draba ssp. chalepense | Hoary Cress | 1998 Surrey |
| Lepidium heterophyllum | Smith's Pepperwort | 1998 Thorpeness |
| Leymus arenarius | Lyme Grass | 1998 Teesside |
| Ligustrum vulgare | Wild Privet | 1998 U. Wharfedale |
| Lilium martagon | Martagon Lily | 1998 West Yorkshire |
| Linaria repens | Pale Toadflax | 1998 Shropshire |
| Linaria x dominii (L. purpurea x L. repens) | Hybrid Toadflax | 1998 Shropshire |
| Linum catharticum | Fairy Flax | 1998 Shropshire |
| Linum pyrenaicum | Martagon Lily | 1998 Shropshire |
| Listera ovata | Common Twayblade | 1998 Shropshire |
| Listera ovata | Common Twayblade | 1998 West Yorkshire |
| Lithospermum officinale | Common Gromwell | 1998 Shropshire |
| Littorella uniflora | Shoreweed | 1998 West Yorkshire |
| Lonicera japonica | Japanese Honeysuckle | 1998 Surrey |
| Luzula forsteri | Southern Wood-rush | 1998 Handcross W Sussex |
| Luzula multiflora ssp. congesta | Heath Wood-rush | 1998 West Yorkshire |
| Luzula pilosa | Hairy Wood-rush | 1998 Handcross W Sussex |
| Luzula pilosa | Hairy Wood-rush | 1998 New Forest |
| Luzula x borreri | Hybrid Woodrush | 1998 Handcross W Sussex |
| Lychnis flos-jovii | Flower-of-Jove | 1998 Teesside |
| Lysichiton americanus | American Skunk-cabbage | 1998 New Forest |
| Lysimachia ciliata | Fringed Loosestrife | 1998 Teesside |
| Marrubium vulgare | White Horehound | 1998 Somerset |
| Medicago minima | Bur Medick | 1998 Thorpeness |
| Medicago polymorpha | Toothed Medick | 1998 Thorpeness |
| Medicago sativa ssp. sativa | Lucerne | 1998 Teesside |
| Melica uniflora | Wood Melick | 1998 New Forest |
| Mentha x piperita var. citrata | Eau-de-Cologne Mint | 1998 New Forest |
| Menyanthes trifoliata | Bog Bean | 1998 West Yorkshire |
| Milium effusum | Wood Millet | 1998 Shropshire |
| Mimulus guttatus | monkey-flower | 1998 Teesside |
| Mimulus moschatus | Musk | 1998 West Yorkshire |
| Mimulus x robertsii | Hybrid Monkeyflower | 1998 West Yorkshire |
| Minuartia hybrida | Fine-leaved Sandwort | 1998 West Yorkshire |
| Moenchia erecta | Upright Chickweed | 1998 Dorset |
| Moenchia erecta | Upright Chickweed | 1998 New Forest |
| Molinia caerulea | Purple Moor-grass | 1998 West Yorkshire |
| Molinia caerulea ssp. arundinacea | Purple Moor-grass | 1998 Surrey |
| Monotropa hypopitys | Yellow Bird's-nest | 1998 Derbyshire |
| Montia fontana | Blinks | 1998 New Forest |
| Myosotis discolour | Changing Forget-me-not | 1998 Dorset |
| Myosotis secunda | Creeping Water Forget-me-not | 1998 West Yorkshire |
| Myosotis stolonifera | Pale Forget-me-not | 1998 West Yorkshire |
| Myrica cerifera | Bayberry | 1998 New Forest |
| Myrica gale | Bog Myrtle | 1998 New Forest |
| Myriophyllum aquaticum | Parrot's-feather | 1998 Surrey |
| Neottia nidus-avis | Bird's-nest Orchid | 1998 U. Wharfedale |
| Nepeta cataria | Cat-mint | 1998 Bredon Worcs |
| Nuphar lutea | Yellow Water-lily | 1998 Teesside |
| Oenanthe fistulosa | Tubular Water Dropwort | 1998 New Forest |
| Oenanthe lachenalii | Parsley Water-dropwort | 1998 Teesside |
| Oenothera biennis | Common Evening-primrose | 1998 Somerset |
| Oenothera cambrica | Small-flowered Evening-primrose | 1998 Somerset |
| Oenothera glazioviana | Large-flowered Evening-primrose | 1998 Somerset |
| Onobrychis viciifolia | Sainfoin | 1998 Bredon Worcs |
| Ononis repens | Common Restharrow | 1998 Shropshire |
| Ononis repens | Restharrow | 1998 Teesside |
| Onopordum acanthium | Cotton Thistle | 1998 Surrey |
| Ophioglossum azoricum | Small Adder's-tongue | 1998 New Forest |
| Ophioglossum vulgatum | Common Adder's-tongue | 1998 Thorpeness |
| Ophioglossum vulgatum | Common Adder's-tongue | 1998 New Forest |
| Ophrys apifera | Bee Orchid | 1998 Teesside |
| Ophrys apifera | Bee Orchid | 1998 Thorpeness |
| Orchis apifera | Bee Orchid | 1998 Surrey |
| Orchis mascula | Early Purple Orchid | 1998 U. Wharfedale |
| Orchis mascula | Early Purple Orchid | 1998 New Forest |
| Orchis morio | Green-winged Orchid | 1998 Handcross W Sussex |
| Origanum vulgare | Marjoram | 1998 West Yorkshire |
| Ornithopus perpusillus | Bird's-foot | 1998 Dorset |
| Ornithopus perpusillus | Bird's-foot | 1998 New Forest |
| Orobanche elatior | Knapweed Broomrape | 1998 Surrey |
| Orobanche hederae | Ivy Broomrape | 1998 Somerset |
| Orobanche hederae | Ivy Broomrape | 1998 Surrey |
| Orobanche minor | Common Broomrape | 1998 Surrey |
| Osmunda regalis | Royal Fern | 1998 Teesside |
| Osmunda regalis | Royal Fern | 1998 Handcross W Sussex |
| Parietaria judaica | Pellitory-of-the-Wall | 1998 West Yorkshire |
| Paris quadrifolia | Herb Paris | 1998 U. Wharfedale |
| Pentaglottis sempervirens | Green Alkanet | 1998 New Forest |
| Persicaria amphibian | Amphibious Bistort | 1998 West Yorkshire |
| Petasites japonicus | Giant Butterbur | 1998 New Forest |
| Petroselinum segetum | Corn Parsley | 1998 Somerset |
| Phalaris arundinacea | Reed Canary-grass | 1998 Teesside |
| Phleum arenarium | Sand Cat's-tail | 1998 Thorpeness |
| Phleum bertolonii | Small Cat's-tail | 1998 Shropshire |
| Phyllitis scolopendrium | Hart's-tongue Fern | 1998 New Forest |
| Pimpinella major | Greater Burnet-saxifrage | 1998 West Yorkshire |
| Pinguicula vulgaris | Common Butterwort | 1998 U. Wharfedale |
| Pinus pinaster | Maritime Pine | 1998 Guildford, Surrey |
| Plagiobothrys scouleri | White Forget-me-not | 1998 New Forest |
| Plantago coronopus | Buck's-horn Plantain | 1998 Teesside |
| Plantago coronopus | Buck's-horn Plantain | 1998 Teesside |
| Poa bulbosa | Bulbous Meadow-grass | 1998 Thorpeness |
| Polemonium caeruleum | Jacob's-ladder | 1998 Derbyshire |
| Polygala serpyllifolia | Heath Milkwort | 1998 New Forest |
| Polygonatum odoratum | Angular Solomon's-seal | 1998 U. Wharfedale |
| Polygonatum odoratum | Angular Solomon's-seal | 1998 Ingleborough |
| Potamogeton crispus | Curled Pondweed | 1998 Teesside |
| Potamogeton pectinatus | Fennel Pondweed | 1998 Teesside |
| Potamogeton polygonifolius | Bog Pondweed | 1998 New Forest |
| Potentilla erecta | Tormentil | 1998 West Yorkshire |
| Potentilla palustris | Marsh Cinquefoil | 1998 West Yorkshire |
| Potentilla recta | Sulphur Cinquefoil | 1998 Shropshire |
| Primula farinosa | Bird's-eye Primrose | 1998 U. Wharfedale |
| Prunus domestica | Wild Plum | 1998 Surrey |
| Prunus laurocerasus | Cherry Laurel | 1998 New Forest |
| Prunus spinosa | Blackthorn | 1998 Surrey |
| Prunus x fruticans P. spinosa x P. domestica | Hybrid Plum | 1998 New Forest |
| Pulmonaria longifolia | Narrow-leaved Lungwort | 1998 New Forest |
| Pyracantha rogersiana | Asian Firethorn | 1998 Surrey |
| Pyrus pyraster | Wild Pear | 1998 New Forest |
| Ranunculus ficaria ssp bulbilifer | Lesser Celandine | 1998 Handcross W Sussex |
| Ranunculus hederaceus | Ivy-leaved Water-Crowfoot | 1998 New Forest |
| Ranunculus hederaceus | Ivy-leaved Crowfoot | 1998 New Forest |
| Ranunculus lingua | Greater Spearwort | 1998 Shropshire |
| Ranunculus omiophyllus | Round-leaved Crowfoot | 1998 Dorset |
| Ranunculus omiophyllus | Round-leaved Crowfoot | 1998 New Forest |
| Ranunculus peltatus | Pond Water-crowfoot | 1998 New Forest |
| Ranunculus sceleratus | Celery-leaved Buttercup | 1998 Teesside |
| Ranunculus trichophyllus | Thread-leaved Water-crowfoot | 1998 Teesside |
| Rapistrum perenne | Steppe Cabbage | 1998 Teesside |
| Rhinanthus angustifolius | Greater Yellow-rattle | 1998 Surrey |
| Rhinanthus minor | Yellow Rattle | 1998 Shropshire |
| Ribes alpinum | Mountain Currant | 1998 Derbyshire |
| Ribes sanguineum | Flowering Currant | 1998 New Forest |
| Rorippa amphibia | Greater Yellow-cress | 1998 Teesside |
| Rorippa austriaca | Austrian Yellow-cress | 1998 Bredon Worcs |
| Rosa pimpinellifolia | Brunet Rose | 1998 U. Wharfedale |
| Rosa rubiginosa | Sweet Briar | 1998 West Yorkshire |
| Rosa sherardii | Sherard's Downy-rose | 1998 Surrey |
| Rosa x alba | Hybrid rose | 1998 U. Wharfedale |
| Rubus accrescens | Bramble | 1998 Hanchurch Staffs |
| Rubus armeniacus | Bramble | 1998 Surrey |
| Rubus daltrii | Bramble | 1998 Hanchurch Staffs |
| Rubus intensior | Bramble | 1998 Hanchurch Staffs |
| Rubus lintonii | Bramble | 1998 Hanchurch Staffs |
| Rubus murrayi | Bramble | 1998 Hanchurch Staffs |
| Rubus pallidus | Bramble | 1998 Hanchurch Staffs |
| Rubus rubristylus | Bramble | 1998 Hanchurch Staffs |
| Rubus saxatilis | Stone Bramble | 1998 U. Wharfedale |
| Rubus saxatilis | Stone Bramble | 1998 Derbyshire |
| Rubus sneydii | Bramble | 1998 Hanchurch Staffs |
| Rubus spectabilis | Salmonberry | 1998 Teesside |
| Rubus turritus | Bramble | 1998 Hanchurch Staffs |
| Rubus warrenii | Bramble | 1998 Hanchurch Staffs |
| Rumex patientia | Patience Dock | 1998 Surrey |
| Rumex x abortivus | Hybrid Dock | 1998 Somerset |
| Rumex x pratensis | Hybrid Dock | 1998 Somerset |
| Ruscus aculeatus | Butcher's-broom | 1998 New Forest |
| Salix repens | Creeping Willow | 1998 New Forest |
| Salix x multinervis | Hybrid Willow | 1998 Dorset |
| Salvia verticillata | Whorled Clary | 1998 Surrey |
| Sanguisorba minor ssp muricata | Fodder Burnet | 1998 Thorpeness |
| Sanicula europaea | Sanicle | 1998 Shropshire |
| Saxifraga hypnoides | Mossy Saxifrage | 1998 Derbyshire |
| Saxifraga x polita | False Londonpride | 1998 Derbyshire |
| Saxifraga x urbium | Londonpride | 1998 U. Wharfedale |
| Saxifraga x urbium | Londonpride | 1998 Handcross W Sussex |
| Schoenoplectus tabernaemontani | Grey Clubrush | 1998 Teesside |
| Schoenus nigricans | Black Bog Rush | 1998 U. Wharfedale |
| Scirpoides holoschoenus | Round-headed Club-rush | 1998 Somerset |
| Scirpus sylvaticus | Wood Club Rush | 1998 West Yorkshire |
| Scrophularia umbrosa | Green Figwort | 1998 Shropshire |
| Securigera varia | Crown Vetch | 1998 Teesside |
| Sedum acre | Biting Stonecrop | 1998 Teesside |
| Sedum album | White Stonecrop | 1998 Teesside |
| Sedum telephium | Orpine | 1998 New Forest |
| Sedum villosum | Hairy Stonecrop | 1998 Ingleborough |
| Sequoia sempervirens | Coastal Redwood | 1998 Handcross W Sussex |
| Sherardia arvensis | Field Madder | 1998 Shropshire |
| Silene conica | Sand Catchfly | 1998 Thorpeness |
| Silene noctiflora | Night-flowering Catchfly | 1998 Bredon Worcs |
| Silene nutans | Nottingham Catchfly | 1998 Derbyshire |
| Silene x hampeana | Hybrid Campion | 1998 Guildford, Surrey |
| Silybum marianum | Milk Thistle | 1998 Somerset |
| Sinapis arvensis | Charlock | 1998 Teesside |
| Sisymbrium altissimum | Tall Rocket | 1998 Teesside |
| Sisymbrium irio | London Rocket | 1998 Surrey |
| Sisymbrium officinale | Kedge Mustard | 1998 Teesside |
| Sisymbrium orientale | Eastern Rocket | 1998 Teesside |
| Sisymbrium strictissimum | Perennial Rocket | 1998 Surrey |
| Sisyrinchium striatum | Pale Yellow-eyed-grass | 1998 Surrey |
| Solidago gigantea | Early Goldenrod | 1998 Teesside |
| Solidago virgaurea | Goldenrod | 1998 West Yorkshire |
| Sonchus oleraceus | Smooth Sow-thistle | 1998 Thorpeness |
| Sorbus aucuparia | Rowan | 1998 U. Wharfedale |
| Sorbus rupicola | Rock Whitebeam | 1998 Derbyshire |
| Sorbus torminalis | Wild Service Tree | 1998 Shropshire |
| Sorbus torminalis | Wild Service Tree | 1998 West Yorkshire |
| Spartium junceum | Spanish Broom | 1998 Teesside |
| Spartium junceum | Spanish Broom | 1998 Surrey |
| Spirodela polyrhiza | Greater Duckweed | 1998 Somerset |
| Stachys officinalis | Betony | 1998 West Yorkshire |
| Stachys palustris | Marsh Woundwort | 1998 Shropshire |
| Stachys x ambigua | Stachys sylvatica | 1998 Handcross W Sussex |
| Stellaria uliginosa | Bog Stitchwort | 1998 West Yorkshire |
| Stratiotes aloides | Water Soldier | 1998 Shropshire |
| Symphytum officinale | Common Comfrey | 1998 New Forest |
| Symphytum orientale | Soft Comfrey | 1998 U. Wharfedale |
| Symphytum orientale | White Comfrey | 1998 Shropshire |
| Taraxacum palustre | Marsh Dandelion | 1998 New Forest |
| Teesdalia nudicaulis | Shepherd's Cress | 1998 New Forest |
| Teucrium botrys | Cut-leaved Germander | 1998 Surrey |
| Thalictrum aquilegiifolium | French Meadow-rue | 1998 Handcross W Sussex |
| Thalictrum minus | Lesser Meadow-rue | 1998 Teesside |
| Thelypteris palustris | Marsh Fern | 1998 New Forest |
| Tilia cordata | Small-leaved Lime | 1998 Shropshire |
| Tilia platyphyllos | Large-leaved Lime. | 1998 Derbyshire |
| Torilis japonica | Upright Hedge-parsley | 1998 West Yorkshire |
| Trifolium glomeratum | Clustered Clover | 1998 Thorpeness |
| Trifolium ornithopodioides | Fenugreek | 1998 Thorpeness |
| Trifolium scabrum | Rough Clover | 1998 Thorpeness |
| Trifolium striatum | Knotted Clover | 1998 Thorpeness |
| Trifolium subterraneum | Subterranean Clover | 1998 Thorpeness |
| Trifolium suffocatum | Suffocated Clover | 1998 Thorpeness |
| Trisetum flavescens | Yellow Oat-grass | 1998 Teesside |
| Tulipa sylvestris | Wild Tulip | 1998 New Forest |
| Typha angustifolia | Lesser Bulrush | 1998 Teesside |
| Urtica dioica | Common Nettle | 1998 Bredon Worcs |
| Urtica galeopsifolia | Stingless Nettle | 1998 Shropshire |
| Vaccinium myrtillus | Bilberry | 1998 Dorset |
| Vaccinium myrtillus | Bilberry | 1998 West Yorkshire |
| Valeriana dioica | Marsh Valerian | 1998 New Forest |
| Verbascum densiflorum | Dense-flowered Mullein | 1998 Teesside |
| Verbascum pyramidatum | Caucasian Mullein | 1998 Bredon Worcs |
| Verbascum virgatum | Twiggy Mullein | 1998 Bredon Worcs |
| Veronica arvensis | Wall Speedwell | 1998 West Yorkshire |
| Veronica arvensis | Wall Speedwell | 1998 New Forest |
| Veronica catenata | Pink Water-speedwell | 1998 Teesside |
| Veronica hederifolia | Ivy-leaved Speedwell | 1998 New Forest |
| Veronica longifolia | Garden Speedwell | 1998 Surrey |
| Veronica peregrina | American Speedwell | 1998 Surrey |
| Veronica scutellata | Marsh Speedwell | 1998 West Yorkshire |
| Veronica spicata ssp. hybrida | Western Spiked Speedwell | 1998 Ingleborough |
| Viburnum opulus | Guelder Rose | 1998 U. Wharfedale |
| Viburnum x rhytidophylloides | Hybrid Viburnum | 1998 Surrey |
| Vicia sepium | Bush Vetch | 1998 New Forest |
| Vinca major | Greater Periwinkle | 1998 New Forest |
| Viola lactea | Pale Dog-violet | 1998 New Forest |
| Viola lutea | Mountain Pansy | 1998 U. Wharfedale |
| Viola palustris | Marsh Violet | 1998 West Yorkshire |
| Viola palustris | Marsh Violet | 1998 New Forest |
| Viola riviniana | Common Dog-violet | 1998 Ingleborough |
| Viola riviniana | Common Dog-violet | 1998 New Forest |
| Viola rupestris | Teesdale Violet | 1998 Ingleborough |
| Viscum album | Mistletoe | 1998 New Forest |
| Vulpia fasciculata | Dune Fescue | 1998 Somerset |
| Vulpia fasciculata | Dune Fescue | 1998 Thorpeness |
| Wolffia arrhiza | Rootless Duckweed | 1998 Somerset |
| x Festulolium loliaceum | Hybrid Fescue | 1998 Ingleborough |
| x Festulpia hubbardii | Hybrid between V. fasciculata and F. rubra | 1998 Somerset |