Cat's-ear
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 14,718
Species recorded in Powys
1,168 species
Powys — county
Fox-tail Feather-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 14,679
Hen Harrier
- Group
- Birds
- Peak month
- January
- Records since 2000
- 14,659
Common Smoothcap
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 14,629
European Hornet
- Group
- Bees, wasps and ants
- Peak month
- September
- Records since 2000
- 14,599
Lesser Bird's-claw Beard-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 14,503
Tutsan
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 14,496
Smooth Newt
- Group
- Amphibians
- Peak month
- May
- Records since 2000
- 14,467
Yellow Archangel
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 14,460
Bruch's Pincushion
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 14,229
22-spot Ladybird
- Group
- Beetles
- Peak month
- August
- Records since 2000
- 14,206
Golden Dung Fly
- Group
- True flies
- Peak month
- June
- Records since 2000
- 14,206
Ladder-backed Hover Fly
- Group
- True flies
- Peak month
- April
- Records since 2000
- 14,120
Bittersweet
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 14,056
Ring Ouzel
- Group
- Birds
- Peak month
- April
- Records since 2000
- 13,904
Red-stemmed Feather-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 13,899
Glittering Wood-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 13,837
Primrose
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 13,713
Yellow Iris
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 13,607
Silver Sedge
- Group
- Caddisflies
- Peak month
- September
- Records since 2000
- 13,603
Honeysuckle
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 13,575
Ground-elder
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 13,554
Annual Meadow-grass
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 13,548
White-lipped Snail
- Group
- Molluscs
- Peak month
- May
- Records since 2000
- 13,376
Bush Vetch
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 13,352
Polycentropus flavomaculatus
- Group
- Caddisflies
- Peak month
- May
- Records since 2000
- 13,349
Hydropsyche pellucidula
- Group
- Caddisflies
- Peak month
- September
- Records since 2000
- 13,302
Natterer's Bat
- Group
- Mammals
- Peak month
- February
- Records since 2000
- 13,257
Mouse-tail Moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 13,215
Common Pincushion
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 13,176
Silver Birch
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 13,123
Overleaf Pellia
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 13,066
Tufted Hairgrass
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 13,053
Cryphaea heteromalla
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 13,047
Creeping Bent
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 13,035
Crescent-cup Liverwort
- Group
- Liverworts
- Peak month
- March
- Records since 2000
- 13,008
Soldier fly
- Group
- True flies
- Peak month
- June
- Records since 2000
- 12,979
Common Striated Feather-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 12,901
Common Dog-violet
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 12,787
White Earwort
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 12,767
Clossiana euphrosyne
- Group
- Butterflies and moths
- Peak month
- May
- Records since 2000
- 12,660
Fern-leaved Hook-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 12,557
Common long-eared bat
- Group
- Mammals
- Peak month
- June
- Records since 2000
- 12,493
Oxeye Daisy
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 12,477
Noctule Bat
- Group
- Mammals
- Peak month
- July
- Records since 2000
- 12,276
Long-beaked Water Feather-moss
- Group
- Mosses
- Peak month
- August
- Records since 2000
- 12,273
Western waterweed, Nuttall's waterweed
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 12,267
Wild Angelica
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 12,214