Annual Mercury
- Group
- Flowering plants
- Peak month
- October
- Records since 2000
- 2,316
- Home
- Species by county
- Portsmouth
Species recorded in Portsmouth
383 species
Portsmouth — county
Alta Fescue
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 2,310
Lesser Swine-cress
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 2,225
Alfalfa
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 2,042
Annual Sea-blite
- Group
- Flowering plants
- Peak month
- October
- Records since 2000
- 2,027
Bertoloni's timothy
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 2,007
Clustered Dock
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 2,002
Rock Samphire
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 1,995
Fennel
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 1,899
Early Hair-grass
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 1,861
Yellow Horned Poppy
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 1,664
Guernsey Fleabane
- Group
- Flowering plants
- Peak month
- September
- Records since 2000
- 1,656
Sand Sedge
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 1,642
Wild Onion
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 1,630
Black-grass
- Group
- Flowering plants
- Peak month
- October
- Records since 2000
- 1,597
Sea Mayweed
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 1,577
Pink-sorrel
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 1,509
Beaked Hawk's-beard
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 1,455
Common Sea-lavender
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 1,415
Stone Parsley
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 1,315
Squirrel's Tail Fescue
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 1,244
Hyacinthoides
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 1,241
Sea Club-rush
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 1,227
Water Bent
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 1,207
Mouse-ear Hawkweed
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 1,158
Meadow Barley
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 1,118
Hawkweed Oxtongue
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 977
Grey Sedge
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 940
Musk Stork's-bill
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 909
Golden Samphire
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 858
Cockspur [grass]
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 778
Grass-leaved Orache
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 671
Broomrape
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 656
Bilbao Fleabane
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 643
Bur Chervil
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 545
Corky-fruited Water-dropwort
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 518
Bay
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 481
Garden Grape-hyacinth
- Group
- Flowering plants
- Peak month
- April
- Records since 2000
- 479
Little-Robin
- Group
- Flowering plants
- Peak month
- May
- Records since 2000
- 426
Harestail grass
- Group
- Flowering plants
- Peak month
- July
- Records since 2000
- 369
Thinopyrum acutum
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 303
Monterey cypress
- Group
- Conifers
- Peak month
- April
- Records since 2000
- 251
Sea Fern-grass
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 250
Pale Flax
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 245
Nottingham Catchfly
- Group
- Flowering plants
- Peak month
- June
- Records since 2000
- 205
Eastern Olivaceous Warbler
- Group
- Birds
- Peak month
- September
- Records since 2000
- 172
Slender Hare's-ear
- Group
- Flowering plants
- Peak month
- August
- Records since 2000
- 171