Species Audit
Vascular plants
Although Calderdale supports relatively few botanical species of national concern, key species such as Floating Water Plantain, Needle Spike-rush and Ivy-leaved Crowfoot can be found. While there are few national priorities, there is a long list of local, native vascular plants occurring at a few sites within the District. Such localities often represent relatively undamaged, semi-natural habitats and their conservation, along with the associate habitat, is of high concern.
Some species are believed to be under recorded while others are believed to be extinct within the district. Fieldwork will be needed to establish the current status of these. Several species are apparently extinct now, but would merit checking to confirm their absence. Some species such as the Autumn Crocus have been introduced into the area but its history and association make it of conservation importance and worthy of selection as a Priority Species.
Common name: Rough horsetail
Scientific name: Equisetum hyemale
National: -
Regional: -
Local: Rare
Habitat: Upland oakwood
Ref: 3
Notes: A Calderdale Priority Species. One site.
National: -
Regional: -
Local: Rare
Habitat: Upland oakwood
Ref: 3
Notes: A Calderdale Priority Species. One site.
Common name: Brittle bladder-fern
Scientific name: Cystopteris fragilis
National: -
Regional: -
Local: Rare
Habitat: Wall, rocks
Ref: 3
Notes: A Calderdale Priority Species.
National: -
Regional: -
Local: Rare
Habitat: Wall, rocks
Ref: 3
Notes: A Calderdale Priority Species.
Common name: Soft shield fern
Scientific name: Polystichum setiferum
National: -
Regional: -
Local: Rare
Habitat: Upland oakwood
Ref: 3
Notes: A Calderdale Priority Species. One site.
National: -
Regional: -
Local: Rare
Habitat: Upland oakwood
Ref: 3
Notes: A Calderdale Priority Species. One site.
Common name: Narrow buckler-fern
Scientific name: Dryopteris carthusiana
National: -
Regional: -
Local: Rare
Habitat: Wet woodland
Ref: 3
Notes: A Calderdale Priority Species.
National: -
Regional: -
Local: Rare
Habitat: Wet woodland
Ref: 3
Notes: A Calderdale Priority Species.
Common name: Royal fern
Scientific name: Osmunda regalis
National: -
Regional: -
Local: -
Habitat: -
Ref: -
Notes: A Calderdale Priority Species.
National: -
Regional: -
Local: -
Habitat: -
Ref: -
Notes: A Calderdale Priority Species.
Common name: Globe flower
Scientific name: Trollius europaeus
National: -
Regional: -
Local: Rare
Habitat: Wet woodland
Ref: 3
Notes: A Calderdale Priority Species. One site.
National: -
Regional: -
Local: Rare
Habitat: Wet woodland
Ref: 3
Notes: A Calderdale Priority Species. One site.
Common name: Pale forget-me-not
Scientific name: Myosotis stolonifera
National: Listed in Red Data Book
Regional: Provisional Yorkshire and Humber Priority Species
Local: Rare
Habitat: Upland heathland and blanket bog
Ref: 1, 3, 4
Notes: A Calderdale Priority Species. One site.
National: Listed in Red Data Book
Regional: Provisional Yorkshire and Humber Priority Species
Local: Rare
Habitat: Upland heathland and blanket bog
Ref: 1, 3, 4
Notes: A Calderdale Priority Species. One site.
Common name: Marsh stitchwort
Scientific name: Stellaria palustris
National: -
Regional: -
Local: Rare
Habitat: Marsh, ponds and lakes
Ref: 3
Notes: A Calderdale Priority Species. Probably under recorded.
National: -
Regional: -
Local: Rare
Habitat: Marsh, ponds and lakes
Ref: 3
Notes: A Calderdale Priority Species. Probably under recorded.
Common name: Bog pimpernel
Scientific name: Anagallis tenella
National: -
Regional: -
Local: Rare
Habitat: Marsh, bogs
Ref: 3
Notes: A Calderdale Priority Species.
National: -
Regional: -
Local: Rare
Habitat: Marsh, bogs
Ref: 3
Notes: A Calderdale Priority Species.
Common name: Imperforate st John's wort
Scientific name: Hypericum maculatum
National: -
Regional: -
Local: Rare
Habitat: Unimproved grassland
Ref: 3
Notes: A Calderdale Priority Species.
National: -
Regional: -
Local: Rare
Habitat: Unimproved grassland
Ref: 3
Notes: A Calderdale Priority Species.
Common name: Stone bramble
Scientific name: Rubus saxatilis
National: -
Regional: -
Local: Rare
Habitat: Unimproved grassland
Ref: 3
Notes: A Calderdale Priority Species.
National: -
Regional: -
Local: Rare
Habitat: Unimproved grassland
Ref: 3
Notes: A Calderdale Priority Species.
Common name: Wall pennywort
Scientific name: Umbilicus rupestris
National: -
Regional: -
Local: Rare
Habitat: Wall
Ref: 3
Notes: A Calderdale Priority Species.
National: -
Regional: -
Local: Rare
Habitat: Wall
Ref: 3
Notes: A Calderdale Priority Species.
Common name: Int enchanter's-nightshade
Scientific name: Circaea x intermedia
National: -
Regional: -
Local: Rare
Habitat: Upland oakwood, hedgerow
Ref: 3
Notes: A Calderdale Priority Species.
National: -
Regional: -
Local: Rare
Habitat: Upland oakwood, hedgerow
Ref: 3
Notes: A Calderdale Priority Species.
Common name: Common Water-crowfoot
Scientific name: Rannunculus aquatilis
National: -
Regional: Rare
Local: Rare
Habitat: PL, RS
Ref: 3
Notes: Probably under recorded
National: -
Regional: Rare
Local: Rare
Habitat: PL, RS
Ref: 3
Notes: Probably under recorded
Common name: Round-leaved wintergreen
Scientific name: Pyrola rotundifolial.ssp,rotundifolia
National: -
Regional: Rare
Local: Rare
Habitat: Wet woodland
Ref: 3
Notes: A Calderdale Priority Species. One site
National: -
Regional: Rare
Local: Rare
Habitat: Wet woodland
Ref: 3
Notes: A Calderdale Priority Species. One site
Common name: Bee Orchid
Scientific name: Orprys apifera
National: -
Regional: Scarce
Local: Rare
Habitat: Unimproved grassland
Ref:
Notes: Two sites.
National: -
Regional: Scarce
Local: Rare
Habitat: Unimproved grassland
Ref:
Notes: Two sites.
Common name: Alt-leaved golden saxifrage
Scientific name: Chrysosplenium alternifolium
National: -
Regional: -
Local: Rare
Habitat: Wet woodland
Ref: 3
Notes: A Calderdale Priority Species. One site.
National: -
Regional: -
Local: Rare
Habitat: Wet woodland
Ref: 3
Notes: A Calderdale Priority Species. One site.
Common name: Heath cudweed
Scientific name: Gnaphalium sylaticum
National: -
Regional: -
Local: Rare
Habitat: Upland heathland and blanket bog
Ref: 3
Notes: A Calderdale Priority Species.
National: -
Regional: -
Local: Rare
Habitat: Upland heathland and blanket bog
Ref: 3
Notes: A Calderdale Priority Species.
Common name: Autumn gentian
Scientific name: Gentiane lamarella
National: -
Regional: -
Local: Rare
Habitat: Upland heathland and blanket bog
Ref: 3
Notes: A Calderdale Priority Species. One site.
National: -
Regional: -
Local: Rare
Habitat: Upland heathland and blanket bog
Ref: 3
Notes: A Calderdale Priority Species. One site.
Common name: Bog speedwell
Scientific name: Veronica scutellata
National: -
Regional: -
Local: Rare
Habitat: Ponds and lakes, marsh
Ref: 3
Notes: A Calderdale Priority Species. Probably under recorded.
National: -
Regional: -
Local: Rare
Habitat: Ponds and lakes, marsh
Ref: 3
Notes: A Calderdale Priority Species. Probably under recorded.
Common name: Floating water plantain
Scientific name: Luronium natans
National: Listed in Red Data Book
Regional: Priority Species
Local: Rare
Habitat: Canals
Ref: 1, 3
Notes: A Calderdale Priority Species.
National: Listed in Red Data Book
Regional: Priority Species
Local: Rare
Habitat: Canals
Ref: 1, 3
Notes: A Calderdale Priority Species.
Common name: Mountain melick
Scientific name: Melica nutans
National: -
Regional: -
Local: Rare
Habitat: Upland oakwood
Ref: 3
Notes: A Calderdale Priority Species. One site.
National: -
Regional: -
Local: Rare
Habitat: Upland oakwood
Ref: 3
Notes: A Calderdale Priority Species. One site.
Common name: Needle spike-rush
Scientific name: Eleocharis acicularis
National: Listed in Red Data Book
Regional: -
Local: Rare
Habitat: Ponds and lakes, canals
Ref: 1, 3, 4
Notes: A Calderdale Priority Species.
National: Listed in Red Data Book
Regional: -
Local: Rare
Habitat: Ponds and lakes, canals
Ref: 1, 3, 4
Notes: A Calderdale Priority Species.
Common name: Stag's-horn clubmoss
Scientific name: Lycopodium clavatum
National: -
Regional: -
Local: Rare
Habitat: Upland heathland and blanket bog
Ref: 3
Notes: A Calderdale Priority Species. One site.
National: -
Regional: -
Local: Rare
Habitat: Upland heathland and blanket bog
Ref: 3
Notes: A Calderdale Priority Species. One site.
Common name: Wood barley
Scientific name: Hordelymus europaeus
National: Nationally scarce
Regional: Provisional Yorkshire and Humber Priority Species
Local: Rare
Habitat: Upland oakwood
Ref: 2, 3, 4
Notes: A Calderdale Priority Species. Needs confirmation.
National: Nationally scarce
Regional: Provisional Yorkshire and Humber Priority Species
Local: Rare
Habitat: Upland oakwood
Ref: 2, 3, 4
Notes: A Calderdale Priority Species. Needs confirmation.
Common name: Marsh valerian
Scientific name: Valeriana dioica
National: -
Regional: -
Local: Rare
Habitat: Bogs, marsh
Ref: 3
Notes: A Calderdale Priority Species.
National: -
Regional: -
Local: Rare
Habitat: Bogs, marsh
Ref: 3
Notes: A Calderdale Priority Species.
Common name: Yellow Birdsnest
Scientific name: Monotropa hypopitys
National: PS
Regional: -
Local: Rare
Habitat: WW
Ref: 3
Notes: 1 site.
National: PS
Regional: -
Local: Rare
Habitat: WW
Ref: 3
Notes: 1 site.
Common name: Spignel
Scientific name: Meum athamanticum
National: Nationally scarce
Regional: Provisional Yorkshire and Humber Priority Species
Local: Rare
Habitat: Unimproved grassland
Ref: 2, 3, 4
Notes: A Calderdale Priority Species.
National: Nationally scarce
Regional: Provisional Yorkshire and Humber Priority Species
Local: Rare
Habitat: Unimproved grassland
Ref: 2, 3, 4
Notes: A Calderdale Priority Species.
Common name: Autumn crocus
Scientific name: Crocus nudiflorus
National: -
Regional: -
Local: Rare
Habitat: Unimproved grassland
Ref: 3
Notes: A Calderdale Priority Species. Locally important.
National: -
Regional: -
Local: Rare
Habitat: Unimproved grassland
Ref: 3
Notes: A Calderdale Priority Species. Locally important.
Common name: Narrow scaly fern
Scientific name: Dryopteris affinis cambrensis
National: -
Regional: -
Local: Rare
Habitat: Wet woodland
Ref: 3
Notes: A Calderdale Priority Species.
National: -
Regional: -
Local: Rare
Habitat: Wet woodland
Ref: 3
Notes: A Calderdale Priority Species.
Common name: Sherard's downy-rose
Scientific name: Rosa sherardii
National: -
Regional: -
Local: Rare
Habitat: Unimproved grassland, hedgerow
Ref: 3
Notes: A Calderdale Priority Species. Needs confirmation.
National: -
Regional: -
Local: Rare
Habitat: Unimproved grassland, hedgerow
Ref: 3
Notes: A Calderdale Priority Species. Needs confirmation.
Common name: Alternate water-milfoil
Scientific name: Myriophyllum alterniflorum
National: -
Regional: -
Local: Rare
Habitat: Ponds and lakes, rivers and streams
Ref: 3
Notes: A Calderdale Priority Species.
National: -
Regional: -
Local: Rare
Habitat: Ponds and lakes, rivers and streams
Ref: 3
Notes: A Calderdale Priority Species.
Common name: Wood cranesbill
Scientific name: Geranium sylvaticum
National: -
Regional: -
Local: Rare
Habitat: Upland oakwood, unimproved grassland
Ref: 3
Notes: A Calderdale Priority Species.
National: -
Regional: -
Local: Rare
Habitat: Upland oakwood, unimproved grassland
Ref: 3
Notes: A Calderdale Priority Species.
Common name: Lesser skullcap
Scientific name: Scutellaria minor
National: -
Regional: -
Local: Rare
Habitat: Canals
Ref: 3
Notes: A Calderdale Priority Species.
National: -
Regional: -
Local: Rare
Habitat: Canals
Ref: 3
Notes: A Calderdale Priority Species.
Common name: Hairlike pondweed
Scientific name: Potamogeton trichoides
National: -
Regional: Provisional Yorkshire and Humber Priority Species
Local: Rare
Habitat: Ponds and lakes, rivers and streams
Ref: 3, 4
Notes: A Calderdale Priority Species.
National: -
Regional: Provisional Yorkshire and Humber Priority Species
Local: Rare
Habitat: Ponds and lakes, rivers and streams
Ref: 3, 4
Notes: A Calderdale Priority Species.
Common name: Horned pondweed
Scientific name: Zannichellia palustris
National: -
Regional: -
Local: Rare
Habitat: Ponds and lakes, rivers and streams
Ref: 3
Notes: A Calderdale Priority Species.
National: -
Regional: -
Local: Rare
Habitat: Ponds and lakes, rivers and streams
Ref: 3
Notes: A Calderdale Priority Species.
Common name: Greater tussock-sedge
Scientific name: Carex paniculata
National: -
Regional: -
Local: Rare
Habitat: Bogs, marsh
Ref: 3
Notes: A Calderdale Priority Species.
National: -
Regional: -
Local: Rare
Habitat: Bogs, marsh
Ref: 3
Notes: A Calderdale Priority Species.
Common name: Frog orchid
Scientific name: Coeloglossum viride
National: -
Regional: -
Local: Rare
Habitat: Unimproved grassland
Ref: 3
Notes: A Calderdale Priority Species.
National: -
Regional: -
Local: Rare
Habitat: Unimproved grassland
Ref: 3
Notes: A Calderdale Priority Species.
Common name: Corn cleavers
Scientific name: Galium tricornutum
National: Listed in Red Data Book
Regional: -
Local: Rare
Habitat: Arable
Ref: 1, 3
Notes: Found as a casual
National: Listed in Red Data Book
Regional: -
Local: Rare
Habitat: Arable
Ref: 1, 3
Notes: Found as a casual
Common name: Little robin
Scientific name: Geranium purpureum
National: Listed in Red Data Book
Regional: -
Local: Rare
Habitat: Hedgerow
Ref: 1, 3
Notes: Found as a casual.
National: Listed in Red Data Book
Regional: -
Local: Rare
Habitat: Hedgerow
Ref: 1, 3
Notes: Found as a casual.
Common name: Jacob's ladder
Scientific name: Polemonium caeruleum
National: Listed in Red Data Book
Regional: Provisional Yorkshire and Humber Priority Species
Local: Rare
Habitat: Upland heathland and blanket bog
Ref: 1, 3, 4
Notes: Introduced at this site.
National: Listed in Red Data Book
Regional: Provisional Yorkshire and Humber Priority Species
Local: Rare
Habitat: Upland heathland and blanket bog
Ref: 1, 3, 4
Notes: Introduced at this site.
Common name: Great horsetail
Scientific name: Equisetum telmateia
National: -
Regional: -
Local: Rare
Habitat: Ponds and lakes
Ref: 3
Notes: Probably introduced.
National: -
Regional: -
Local: Rare
Habitat: Ponds and lakes
Ref: 3
Notes: Probably introduced.
Common name: Goldilocks buttercup
Scientific name: Ranunculus auricomus
National: -
Regional: -
Local: Rare
Habitat: Old walls
Ref: 3
Notes: Probably under recorded.
National: -
Regional: -
Local: Rare
Habitat: Old walls
Ref: 3
Notes: Probably under recorded.
Common name: Common fumitory
Scientific name: Fumaria officinalis
National: -
Regional: -
Local: Rare
Habitat: Old walls
Ref: 3
Notes: Probably under recorded.
National: -
Regional: -
Local: Rare
Habitat: Old walls
Ref: 3
Notes: Probably under recorded.
Common name: Pellitory of the wall
Scientific name: Parietaria judaica
National: -
Regional: -
Local: Rare
Habitat: Wall
Ref: 3
Notes: Introduced at this site.
National: -
Regional: -
Local: Rare
Habitat: Wall
Ref: 3
Notes: Introduced at this site.
Common name: Water chickweed
Scientific name: Myosoton aquaticum
National: -
Regional: -
Local: Rare
Habitat: Marsh, ponds and lakes
Ref: 3
Notes: Under recorded.
National: -
Regional: -
Local: Rare
Habitat: Marsh, ponds and lakes
Ref: 3
Notes: Under recorded.
Common name: Annual pearlwort
Scientific name: Sagina apetala Ard.ssp.erecta
National: -
Regional: -
Local: Rare
Habitat: Roadsides
Ref: 3
Notes: Under recorded.
National: -
Regional: -
Local: Rare
Habitat: Roadsides
Ref: 3
Notes: Under recorded.
Common name: Annual knawell
Scientific name: Seleranthus annuus ssp.annuus
National: -
Regional: -
Local: Rare
Habitat: Arable
Ref: 3
Notes: Under recorded.
National: -
Regional: -
Local: Rare
Habitat: Arable
Ref: 3
Notes: Under recorded.
Common name: Des estang's st john's wort
Scientific name: Hypericum.x desetangsii
National: -
Regional: -
Local: Rare
Habitat: Unimproved grassland
Ref: 3
Notes: A Calderdale Priority Species. One site.
National: -
Regional: -
Local: Rare
Habitat: Unimproved grassland
Ref: 3
Notes: A Calderdale Priority Species. One site.
Common name: Trailing st john's wort
Scientific name: Hypericum humifusum
National: -
Regional: -
Local: Rare
Habitat: Unimproved grassland
Ref: 3
Notes: Casual.
National: -
Regional: -
Local: Rare
Habitat: Unimproved grassland
Ref: 3
Notes: Casual.
Common name: Sweet violet
Scientific name: Viola odorata
National: -
Regional: -
Local: Rare
Habitat: Hedgerow, upland oakwood
Ref: 3
Notes: Under recorded.
National: -
Regional: -
Local: Rare
Habitat: Hedgerow, upland oakwood
Ref: 3
Notes: Under recorded.
Common name: Creeping willow
Scientific name: Salix repens.
National: -
Regional: -
Local: Rare
Habitat: Hedgerow
Ref: 3
Notes: Casual.
National: -
Regional: -
Local: Rare
Habitat: Hedgerow
Ref: 3
Notes: Casual.
Common name: Bay willow
Scientific name: Salix pentandra
National: -
Regional: -
Local: Rare
Habitat: Cloughs
Ref: 3
Notes: Casual.
National: -
Regional: -
Local: Rare
Habitat: Cloughs
Ref: 3
Notes: Casual.
Common name: Creeping yellow-cress
Scientific name: Rorippa sylvestris
National: -
Regional: -
Local: Rare
Habitat: Wet woodland, walls
Ref: 3
Notes: Casual.
National: -
Regional: -
Local: Rare
Habitat: Wet woodland, walls
Ref: 3
Notes: Casual.
Common name: Mountain currant
Scientific name: Ribes alpinum
National: Nationally scarce
Regional: -
Local: Rare
Habitat: Limestone rocks
Ref: 2, 3
Notes: Casual.
National: Nationally scarce
Regional: -
Local: Rare
Habitat: Limestone rocks
Ref: 2, 3
Notes: Casual.
Common name: Shepherd's needle
Scientific name: Scandix pecten-veneris
National: Nationally scarce
Regional: -
Local: Rare
Habitat: Arable
Ref: 2, 3
Notes: Casual.
National: Nationally scarce
Regional: -
Local: Rare
Habitat: Arable
Ref: 2, 3
Notes: Casual.
Common name: Yellow-vetch
Scientific name: Vicia lutea
National: Nationally scarce
Regional: -
Local: Rare
Habitat: Shingle
Ref: 2, 3
Notes: Casual.
National: Nationally scarce
Regional: -
Local: Rare
Habitat: Shingle
Ref: 2, 3
Notes: Casual.
