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GB Red List (2001 IUCN criteria)

5,224 species

Adder's-tongue

Group
Ferns and horsetails
Peak month
May
Records since 2000
1,091

Black-grass

Group
Flowering plants
Peak month
June
Records since 2000
1,086

Azure Hawker

Group
Dragonflies and damselflies
Peak month
July
Records since 2000
1,083

Disc lichen

Group
Lichens
Peak month
May
Records since 2000
1,080

Sea Scalewort

Group
Liverworts
Peak month
July
Records since 2000
1,079

Bream

Group
Fish
Peak month
August
Records since 2000
1,078

Tawny Sedge

Group
Flowering plants
Peak month
July
Records since 2000
1,065

Royal Fern

Group
Ferns and horsetails
Peak month
June
Records since 2000
1,063

Flat Ramshorn

Group
Molluscs
Peak month
May
Records since 2000
1,058

Lake Limpet

Group
Molluscs
Peak month
May
Records since 2000
1,053

Crystal Snail

Group
Molluscs
Peak month
May
Records since 2000
1,047