Henbane
- Peak month
- July
- Records since 2000
- 239
- Scientific name
- Hyoscyamus niger
Pininana
- Peak month
- May
- Records since 2000
- 239
- Scientific name
- Echium pininana
Floating Club-rush
- Peak month
- August
- Records since 2000
- 236
- Scientific name
- Isolepis fluitans
Pseudosasa japonica
- Peak month
- April
- Records since 2000
- 236
- Group
- Flowering plants
Valeriana pyrenaica
- Peak month
- May
- Records since 2000
- 234
- Group
- Flowering plants
Rough-fruited cinquefoil
- Peak month
- June
- Records since 2000
- 233
- Scientific name
- Potentilla recta
Smooth-stalked Sedge
- Peak month
- June
- Records since 2000
- 233
- Scientific name
- Carex laevigata
Colutea arborescens
- Peak month
- August
- Records since 2000
- 232
- Group
- Flowering plants
Spiked Wood-rush
- Peak month
- July
- Records since 2000
- 232
- Scientific name
- Luzula spicata
Three-flowered Rush
- Peak month
- August
- Records since 2000
- 231
- Scientific name
- Juncus triglumis
Arctic Eyebright
- Peak month
- July
- Records since 2000
- 230
- Scientific name
- Euphrasia arctica
Bearberry
- Peak month
- June
- Records since 2000
- 230
- Scientific name
- Arctostaphylos uva-ursi
Chenopodium giganteum
- Peak month
- August
- Records since 2000
- 230
- Group
- Flowering plants
Portland Spurge
- Peak month
- June
- Records since 2000
- 230
- Scientific name
- Euphorbia portlandica
Spring star
- Peak month
- April
- Records since 2000
- 229
- Scientific name
- Ipheion uniflorum
Thinopyrum junceiforme
- Peak month
- August
- Records since 2000
- 228
- Group
- Flowering plants
Creeping Lady's-tresses
- Peak month
- July
- Records since 2000
- 227
- Scientific name
- Goodyera repens
Cutleaf blackberry
- Peak month
- July
- Records since 2000
- 227
- Scientific name
- Rubus laciniatus
Rubus dasyphyllus
- Peak month
- August
- Records since 2000
- 227
- Group
- Flowering plants
Noccaea perfoliata
- Peak month
- April
- Records since 2000
- 226
- Group
- Flowering plants
Phytolacca acinosa
- Peak month
- August
- Records since 2000
- 225
- Group
- Flowering plants
Yellow bird's-nest
- Peak month
- July
- Records since 2000
- 225
- Scientific name
- Hypopitys monotropa
False Sedge
- Peak month
- August
- Records since 2000
- 224
- Scientific name
- Carex simpliciuscula
Aesculus carnea
- Peak month
- May
- Records since 2000
- 223
- Group
- Flowering plants
Bastard-toadflax
- Peak month
- July
- Records since 2000
- 222
- Scientific name
- Thesium humifusum
Four-leaved Allseed
- Peak month
- June
- Records since 2000
- 221
- Scientific name
- Polycarpon tetraphyllum
Scottish Asphodel
- Peak month
- June
- Records since 2000
- 221
- Scientific name
- Tofieldia pusilla
English Scurvygrass
- Peak month
- May
- Records since 2000
- 220
- Scientific name
- Cochlearia anglica
Giant Knotweed
- Peak month
- June
- Records since 2000
- 220
- Scientific name
- Reynoutria sachalinensis
Lesser Centaury
- Peak month
- July
- Records since 2000
- 219
- Scientific name
- Centaurium pulchellum
Narrow-leafed Ash
- Peak month
- July
- Records since 2000
- 219
- Scientific name
- Fraxinus angustifolia
Crested dock
- Peak month
- May
- Records since 2000
- 218
- Scientific name
- Rumex cristatus
Prickly comfrey
- Peak month
- May
- Records since 2000
- 218
- Scientific name
- Symphytum asperum
Small-flowered Buttercup
- Peak month
- May
- Records since 2000
- 218
- Scientific name
- Ranunculus parviflorus
Field Pepperwort
- Peak month
- May
- Records since 2000
- 216
- Scientific name
- Lepidium campestre
Sibbaldia
- Peak month
- July
- Records since 2000
- 216
- Scientific name
- Sibbaldia procumbens
Blue-eyed-Mary
- Peak month
- May
- Records since 2000
- 215
- Scientific name
- Omphalodes verna
Marsh Sow-thistle
- Peak month
- August
- Records since 2000
- 215
- Scientific name
- Sonchus palustris
Narcissus cyclazetta
- Peak month
- February
- Records since 2000
- 215
- Group
- Flowering plants
Species code: Rc
- Peak month
- July
- Records since 2000
- 215
- Scientific name
- Ruppia cirrhosa
Fiddle Dock
- Peak month
- July
- Records since 2000
- 213
- Scientific name
- Rumex pulcher
Greater Bladderwort
- Peak month
- July
- Records since 2000
- 212
- Scientific name
- Utricularia vulgaris
Beaked Tasselweed
- Peak month
- July
- Records since 2000
- 211
- Scientific name
- Ruppia maritima
Early spider orchid
- Peak month
- April
- Records since 2000
- 211
- Scientific name
- Ophrys sphegodes
Sea Pea
- Peak month
- June
- Records since 2000
- 211
- Scientific name
- Lathyrus japonicus
Flattened Meadow-grass
- Peak month
- June
- Records since 2000
- 210
- Scientific name
- Poa compressa
Hoary Cinquefoil
- Peak month
- June
- Records since 2000
- 210
- Scientific name
- Potentilla argentea
Ripgut brome
- Peak month
- June
- Records since 2000
- 210
- Scientific name
- Bromus diandrus