Eelgrass
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 5,884
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- Designations
- GB Red List (2001 IUCN criteria)
GB Red List (2001 IUCN criteria)
5,224 species
Parent Bug
- Group
- True bugs
- Peak month
- August
- Records since 2000
- 5,884
Shining Crane's-bill
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 5,867
Hornbeam
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 5,848
Juicy Silk-moss
- Group
- Mosses
- Peak month
- April
- Records since 2000
- 5,833
Opium Poppy
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 5,832
Tender Feather-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 5,821
Common Sedge
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 5,800
Red Beard-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 5,799
Plectrocnemia conspersa
- Group
- Caddisflies
- Peak month
- May
- Records since 2000
- 5,775
Bishop's Mitre
- Group
- True bugs
- Peak month
- June
- Records since 2000
- 5,769
Agrimony
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 5,759
Crisped Pincushion
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 5,723
Greater Featherwort
- Group
- Liverworts
- Peak month
- March
- Records since 2000
- 5,722
Greenish Oedemera
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 5,714
Malachite Beetle
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 5,702
Hair-pointed Feather-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 5,694
Sharp-flowered Rush
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 5,653
Lesser Marsh Grasshopper
- Group
- Grasshoppers and crickets
- Peak month
- August
- Records since 2000
- 5,628
Yellow Pimpernel
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 5,601
Limnephilus marmoratus
- Group
- Caddisflies
- Peak month
- August
- Records since 2000
- 5,591
Smooth Hawk's-beard
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 5,576
Perennial Sow-thistle
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 5,567
Hydropsyche angustipennis
- Group
- Caddisflies
- Peak month
- October
- Records since 2000
- 5,560
Cirl Bunting
- Group
- Birds
- Peak month
- August
- Records since 2000
- 5,559
Large Gray Willow
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 5,535
Wall-rue
- Group
- Ferns and horsetails
- Peak month
- April
- Records since 2000
- 5,522
Bird Cherry
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 5,516
Abraded Camouflage Lichen
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 5,486
Medium Sedge
- Group
- Caddisflies
- Peak month
- May
- Records since 2000
- 5,472
White Campion
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 5,458
Large Cinnamon Sedge
- Group
- Caddisflies
- Peak month
- April
- Records since 2000
- 5,444
Redshank [plant]
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 5,442
Hairy Bitter-cress
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 5,395
Common Toadflax
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 5,393
Wall Speedwell
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 5,380
Rim lichen
- Group
- Lichens
- Peak month
- June
- Records since 2000
- 5,376
Field forklet moss
- Group
- Mosses
- Peak month
- October
- Records since 2000
- 5,362
Common Green Shield Lichen
- Group
- Lichens
- Peak month
- March
- Records since 2000
- 5,354
Drusus annulatus
- Group
- Caddisflies
- Peak month
- April
- Records since 2000
- 5,337
Kidney Vetch
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 5,335
Fairy beads
- Group
- Liverworts
- Peak month
- March
- Records since 2000
- 5,322
Chaetopteryx villosa
- Group
- Caddisflies
- Peak month
- May
- Records since 2000
- 5,313
Grammoptera ruficornis
- Group
- Beetles
- Peak month
- May
- Records since 2000
- 5,290
Heath Rush
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 5,286
Greater Fork-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 5,279
Frizzled Crisp-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 5,214
Glaucous Gull
- Group
- Birds
- Peak month
- January
- Records since 2000
- 5,212