Common Rock-rose
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 3,136
Species recorded in Conwy
564 species
Conwy — county
Navicula gregaria
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 3,118
Jagged Germanderwort
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 3,112
Northern Peatmoss
- Group
- Mosses
- Peak month
- August
- Records since 2000
- 3,074
Lesser Cow-horn Bog-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 3,000
Spiky Bog-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 3,000
Potamophylax cingulatus
- Group
- Caddisflies
- Peak month
- April
- Records since 2000
- 2,887
Gomphonema parvulum
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,885
Reimeria sinuata
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,874
Yellow spotted sedge
- Group
- Caddisflies
- Peak month
- May
- Records since 2000
- 2,862
Brook-side Feather-moss
- Group
- Mosses
- Peak month
- August
- Records since 2000
- 2,861
Codriophorus aquaticus
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 2,831
Strict Haircap
- Group
- Mosses
- Peak month
- September
- Records since 2000
- 2,802
Bog-moss Flapwort
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 2,799
Navicula lanceolata
- Group
- Seaweeds and algae
- Peak month
- April
- Records since 2000
- 2,789
Cocconeis placentula
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,767
Beech Feather-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 2,764
Wry-leaved Tamarisk-moss
- Group
- Mosses
- Peak month
- April
- Records since 2000
- 2,759
Dusky Rock-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 2,727
Ciliated Fringewort
- Group
- Liverworts
- Peak month
- April
- Records since 2000
- 2,711
Sessile Grimmia
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 2,708
Long-shanked Pincushion
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 2,701
Amphora pediculus
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,661
Smooth Needle Fly
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 2,645
Claw Brook-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 2,643
New Zealand Pigmyweed
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 2,618
Curly Crisp-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 2,613
Hairy Whirligig
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 2,611
Common Threadwort
- Group
- Liverworts
- Peak month
- September
- Records since 2000
- 2,603
Crisped Neckera
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 2,601
Grove Earwort
- Group
- Liverworts
- Peak month
- September
- Records since 2000
- 2,598
Nectoporus sanmarkii
- Group
- Beetles
- Peak month
- April
- Records since 2000
- 2,581
Common shrew
- Group
- Mammals
- Peak month
- July
- Records since 2000
- 2,577
Pearl Pouncewort
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 2,485
Rusty Hook-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 2,461
Shaw's Bristle-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 2,410
Late Needle Fly
- Group
- Stoneflies
- Peak month
- September
- Records since 2000
- 2,409
Leeches
- Group
- Worms (annelids)
- Peak month
- April
- Records since 2000
- 2,391
Dented Silk-moss
- Group
- Mosses
- Peak month
- April
- Records since 2000
- 2,324
Common Apple-moss
- Group
- Mosses
- Peak month
- April
- Records since 2000
- 2,320
Sea Holly
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 2,310
Rhizosolenia imbricata
- Group
- Seaweeds and algae
- Peak month
- May
- Records since 2000
- 2,309
Synedra dissipata
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,300
Alpine Thread-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 2,292
Five-ranked Bog-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 2,283
Alpine Water-moss
- Group
- Mosses
- Peak month
- August
- Records since 2000
- 2,254
Nitzschia palea
- Group
- Seaweeds and algae
- Peak month
- September
- Records since 2000
- 2,250
Polycelis felina
- Group
- Flatworms
- Peak month
- April
- Records since 2000
- 2,250