Hurtsickle
- Peak month
- July
- Records since 2000
- 1,275
- Scientific name
- Centaurea cyanus
Shallon
- Peak month
- June
- Records since 2000
- 1,265
- Scientific name
- Gaultheria shallon
Milky bellflower
- Peak month
- July
- Records since 2000
- 1,254
- Scientific name
- Campanula lactiflora
Squirrel's Tail Fescue
- Peak month
- June
- Records since 2000
- 1,244
- Scientific name
- Festuca bromoides
Hyacinthoides
- Peak month
- April
- Records since 2000
- 1,241
- Scientific name
- Hyacinthoides massartiana
Field Gentian
- Peak month
- August
- Records since 2000
- 1,232
- Scientific name
- Gentianella campestris
Argentinian Vervain
- Peak month
- August
- Records since 2000
- 1,231
- Scientific name
- Verbena bonariensis
Yellow Saxifrage
- Peak month
- July
- Records since 2000
- 1,231
- Scientific name
- Saxifraga aizoides
Oregon-grape
- Peak month
- April
- Records since 2000
- 1,230
- Scientific name
- Mahonia aquifolium
Dark Mullein
- Peak month
- July
- Records since 2000
- 1,229
- Scientific name
- Verbascum nigrum
Sea Club-rush
- Peak month
- August
- Records since 2000
- 1,227
- Scientific name
- Bolboschoenus maritimus
Thyme-leaved Sandwort
- Peak month
- June
- Records since 2000
- 1,222
- Scientific name
- Arenaria serpyllifolia
Vervain
- Peak month
- July
- Records since 2000
- 1,221
- Scientific name
- Verbena officinalis
Buck's-beard
- Peak month
- June
- Records since 2000
- 1,219
- Scientific name
- Aruncus dioicus
Common knotweed
- Peak month
- August
- Records since 2000
- 1,210
- Scientific name
- Polygonum arenastrum
Henbit Dead-nettle
- Peak month
- April
- Records since 2000
- 1,207
- Scientific name
- Lamium amplexicaule
Water Bent
- Peak month
- June
- Records since 2000
- 1,207
- Scientific name
- Polypogon viridis
Grey Alder
- Peak month
- August
- Records since 2000
- 1,206
- Scientific name
- Alnus incana
Frogbit
- Peak month
- August
- Records since 2000
- 1,205
- Scientific name
- Hydrocharis morsus-ranae
Lily-of-the-valley
- Peak month
- May
- Records since 2000
- 1,200
- Scientific name
- Convallaria majalis
Pot Marigold
- Peak month
- July
- Records since 2000
- 1,200
- Scientific name
- Calendula officinalis
Marsh Valerian
- Peak month
- May
- Records since 2000
- 1,195
- Scientific name
- Valeriana dioica
Spanish Daffodil
- Peak month
- April
- Records since 2000
- 1,194
- Scientific name
- Narcissus hispanicus
Oriental Poppy
- Peak month
- May
- Records since 2000
- 1,180
- Scientific name
- Papaver orientale
Ivy-leaved Duckweed
- Peak month
- August
- Records since 2000
- 1,177
- Scientific name
- Lemna trisulca
Buckwheat
- Peak month
- July
- Records since 2000
- 1,174
- Scientific name
- Fagopyrum esculentum
Daffodil
- Peak month
- March
- Records since 2000
- 1,166
- Scientific name
- Narcissus pseudonarcissus
Snapdragon
- Peak month
- June
- Records since 2000
- 1,162
- Scientific name
- Antirrhinum majus
Sheep's-bit
- Peak month
- June
- Records since 2000
- 1,159
- Scientific name
- Jasione montana
Mouse-ear Hawkweed
- Peak month
- May
- Records since 2000
- 1,158
- Scientific name
- Pilosella officinarum
Thrincia saxatilis
- Peak month
- June
- Records since 2000
- 1,157
- Group
- Flowering plants
Large-flowered Evening-primrose
- Peak month
- July
- Records since 2000
- 1,151
- Scientific name
- Oenothera glazioviana
Unbranched Bur-reed
- Peak month
- August
- Records since 2000
- 1,148
- Scientific name
- Sparganium emersum
Bird's-foot
- Peak month
- May
- Records since 2000
- 1,146
- Scientific name
- Ornithopus perpusillus
Parsley-piert
- Peak month
- May
- Records since 2000
- 1,146
- Scientific name
- Aphanes arvensis
Round-leaved Crane's-bill
- Peak month
- May
- Records since 2000
- 1,143
- Scientific name
- Geranium rotundifolium
Cretan bryony
- Peak month
- June
- Records since 2000
- 1,142
- Scientific name
- Bryonia cretica
Corn Spurrey
- Peak month
- July
- Records since 2000
- 1,139
- Scientific name
- Spergula arvensis
Common Lungwort
- Peak month
- April
- Records since 2000
- 1,134
- Scientific name
- Pulmonaria officinalis
Salsify
- Peak month
- May
- Records since 2000
- 1,134
- Scientific name
- Tragopogon porrifolius
Blindeyes
- Peak month
- June
- Records since 2000
- 1,128
- Scientific name
- Papaver dubium
Wild Service-tree
- Peak month
- May
- Records since 2000
- 1,124
- Scientific name
- Torminalis glaberrima
Meadow Barley
- Peak month
- June
- Records since 2000
- 1,118
- Scientific name
- Hordeum secalinum
Creeping Forget-me-not
- Peak month
- June
- Records since 2000
- 1,113
- Scientific name
- Myosotis secunda
Wild Oat
- Peak month
- July
- Records since 2000
- 1,113
- Scientific name
- Avena fatua
Garden Lobelia
- Peak month
- July
- Records since 2000
- 1,111
- Scientific name
- Lobelia erinus
Italian Alder
- Peak month
- August
- Records since 2000
- 1,104
- Scientific name
- Alnus cordata
Bear's-breech
- Peak month
- April
- Records since 2000
- 1,099
- Scientific name
- Acanthus mollis