Maidenhair Pocket-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 4,452
Species recorded in Powys
1,168 species
Powys — county
Pink-fruited Thread-moss
- Group
- Mosses
- Peak month
- October
- Records since 2000
- 4,450
Olive Upright
- Group
- Mayflies
- Peak month
- April
- Records since 2000
- 4,445
Dwarf Feather-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 4,434
Quaking-grass
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 4,392
Star Sedge
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 4,380
Granite-speck Rim Lichen
- Group
- Lichens
- Peak month
- June
- Records since 2000
- 4,349
Scarlet Waxcap
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 4,247
Hydraena gracilis
- Group
- Beetles
- Peak month
- September
- Records since 2000
- 4,245
Hydropsyche instabilis
- Group
- Caddisflies
- Peak month
- April
- Records since 2000
- 4,225
Golden-head Moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 4,224
Mougeot's Yoke-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 4,222
Reindeer Lichen
- Group
- Lichens
- Peak month
- August
- Records since 2000
- 4,213
Rim lichen
- Group
- Lichens
- Peak month
- June
- Records since 2000
- 4,199
Remote Sedge
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 4,173
Transparent Fork-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 4,163
Flagellate Feather-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 4,162
Common Duckweed
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 4,152
Lousewort
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 4,131
Orange Hawkweed
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 4,109
Minnow
- Group
- Fish
- Peak month
- August
- Records since 2000
- 4,107
Variable Crisp-moss
- Group
- Mosses
- Peak month
- July
- Records since 2000
- 4,091
Asterisk Lichen
- Group
- Lichens
- Peak month
- May
- Records since 2000
- 4,083
Betony
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 4,042
Fool's Water-cress
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 4,038
Stone Loach
- Group
- Fish
- Peak month
- August
- Records since 2000
- 4,026
Mountain Bumble Bee
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 4,024
Floating Sweet-grass
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 4,022
Spiral Extinguisher-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 4,012
Marsh Pennywort
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 4,010
Heath Wood-rush
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 3,996
Common Valerian
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 3,992
Amphibious Bistort
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 3,976
Wood-sedge
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 3,912
Rough Hawkbit
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 3,881
Whiskered Veilwort
- Group
- Liverworts
- Peak month
- March
- Records since 2000
- 3,874
Rhizocarpon reductum
- Group
- Lichens
- Peak month
- September
- Records since 2000
- 3,863
Marsh Violet
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 3,858
Golden Waxcap
- Group
- Fungi
- Peak month
- October
- Records since 2000
- 3,833
Yellow Meadow Ant
- Group
- Bees, wasps and ants
- Peak month
- June
- Records since 2000
- 3,810
Common Yellow Sally
- Group
- Stoneflies
- Peak month
- April
- Records since 2000
- 3,775
Notched Rustwort
- Group
- Liverworts
- Peak month
- July
- Records since 2000
- 3,769
Garden Chafer
- Group
- Beetles
- Peak month
- June
- Records since 2000
- 3,758
Water Screw-moss
- Group
- Mosses
- Peak month
- January
- Records since 2000
- 3,728
Long-beaked Thyme-moss
- Group
- Mosses
- Peak month
- March
- Records since 2000
- 3,723
Pale Glaucous Thread-moss
- Group
- Mosses
- Peak month
- September
- Records since 2000
- 3,715
Snipe fly
- Group
- True flies
- Peak month
- June
- Records since 2000
- 3,679
Water Forget-me-not
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 3,657