Botanical interest of Crosby Coastal Park, Sefton Coast, Merseyside

Philip H. Smith, August 2016

Introduction

Together with the adjacent Seaforth Docks complex (now Liverpool Free Port), Crosby Coastal Park was reclaimed from the Mersey Estuary in the late 1960s. The section studied here extends south from Crosby Baths to the Freeport fence (Fig. 1). It has an elongated triangular shape about 1.6km long with a maximum width of 0.8km at its southern end; a central National Grid Reference is SJ314980. The study site has an area of about 54ha, of which 26ha is occupied by a large Marine Lake, while a much smaller (1.4ha) boating lake lies to its north. A concrete promenade bounds the western edge of the site, beyond which lies a broad beach providing a source of wind-blown sand for dune ridges 30-80m wide that extend roughly north-south on either side of the promenade. These have formed since reclamation and represent the southernmost sand-dunes on the Sefton Coast. The northern section of the eastern ridge was largely removed in 2011 to provide 30,000 tonnes of sand for a coastal defence scheme at Hightown. There are two large fixed dunes north of the boating lake, these having been created artificially during the construction of a pumping station in 1995/96. Most of the rest of the site consists of sandy grassland, some areas being waterlogged in winter. A large proportion is regularly mowed and used for informal recreation by many visitors, some of whom are attracted by the Another Place art-work by Antony Gormley, consisting of 100 cast-iron statues on the adjacent shore. In the south-east corner of the Marine Lake is a small (2ha) nature reserve created in the early 1990s, consisting of marshy grassland surrounded by wet-woodland with two shallow excavated ponds. A nature trail on about 400 m of trackway was established here in 2016.

Designations

The Park and nearby intertidal zone has long been recognised for its wildlife interest. The foreshore and dune ridge west of the promenade lie within the Sefton Coast Site of Special Scientific Interest (SSSI). This is also a Special Area of Conservation (SAC) under the EU Habitats Directive and a Special Protection Area (SPA) under the EU Birds Directive.  SACs and SPAs together form the Natura 2000 network of protected nature sites across Europe. The foreshore is also part of the Ribble and Alt Estuaries Ramsar Site, a wetland of international importance. The Park, including the dunes east of the promenade, is not statutorily protected but the 400ha Crosby Marine Lake, Park and Shore was designated in 2001 as a Site of Local Biological Interest, now a Local Wildlife Site under the Sefton Local Plan. The citation describes relict sand-dune habitats with a coastal lagoon, forming part of the coastal corridor for over-wintering and passage bird populations. Botanical interest was represented by an inventory of 170 plant species, of which one was Nationally Rare, one Nationally Scarce, nine regionally important and 10 locally rare.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 1. The Crosby Coastal Park study area

Botanical surveys

Many reports and published articles have been written on the botany of the Coastal Park, these being summarised below. Other records have been obtained from data submitted to the vice-county vascular plant recorder since 2004, together with casual observations. Nomenclature follows Stace (2010) and subsequent amendments.

Edmondson et al. (1988) studied the Park in 1988 as part of their comprehensive UK National Vegetation Classification (NVC) survey of the Sefton Coast but, unfortunately, did not include a species list. They found that little natural vegetation survived between the recently constructed sea-wall and residential areas but described new dunes forming in places to the west of the promenade and “climbing over” the sea-wall into the open space beyond. The outer dune ridge was mapped at about 450m long. Both ridges supported SD4: Elytrigia juncea foredune and SD5: Leymus arenarius mobile dune communities. Most of the open space was managed as short-mown amenity grassland, its vegetation being mapped as MG7: Lolium perenne ley, a seeded sward which they describe as “botanically uninteresting”. Some Red Fescue swards were found around the Marine Lake, having affinities with both MG7 and SD8: Festuca rubra-Galium verum fixed-dune. The area immediately south of Crosby Baths consisted of a mosaic of bare sand with SD4 and SD5 communities. Only small areas of scrub were found, comprising a few stands of Sea Buckthorn (SD18), Japanese Rose and Tree Lupin (for scientific names of species see Appendices).

A follow-up NVC survey of the Park was carried out seven years later by Edmondson (1995), again without a species list. She found that the conservation value of the amenity grassland had increased by the greater occurrence of sand-dune and maritime species, such as Bird’s-foot-trefoil, Red Fescue and Buck’s-horn Plantain, a particular feature being the spectacular flowering of Dandelion in spring. The dune ridges had increased in height and length, the outer ridge now being 750m long. The effect of trampling on dune vegetation was noted, though apart from a few pressure points there seemed little threat of erosion. However, there was a potential for blown sand to impact adjacent housing. Sea Holly appeared to have increased since 1988 but Edmondson did not find Isle of Man Cabbage, despite the fact that it had been introduced in 1992 during a conservation exercise (see below). A variety of wetland communities was recorded in the fenced-off nature reserve by the south-east corner of the Marine Lake. Garden waste dumping was noted as a cause of eutrophication and a source of non-native plants. Target notes listed introduced species associated with the interface between housing and the Park grassland, eighteen of these not found during later surveys being tabulated in Appendix 5. Another negative factor was heavy use of the Park by dog-walkers, leading to fouling near carparks and access points. She recommended relaxing the mowing regime in places to allow structural diversity and a wider range of species. A further suggestion was the introduction of native plants, though many of those listed have subsequently appeared by natural colonisation.

A third NVC survey of the Coastal Park took place in 2004 (Gateley & Michell 2004). By this time, coastal dynamism was affecting the managed swards. Thus, south of Crosby Baths, sand-blow had created a line of SD5 and SD6 dunes that had continued to grow, widen and mature. East of the mobile dune ridge, Gateley & Michell mapped an SD8 fixed-dune community, giving way to amenity grassland further south. In 2004, almost constant use of a tractor was needed to clear blown sand from the promenade. The area around the Marine Lake and boating lake had a run-down appearance with little diversity of sand-dune communities. However, the nature reserve now supported a range of orchid species, while drifts of marsh-orchids also occurred along the western edge of the Lake. The latter were lost when a footpath was constructed around the Lake in 2005. Areas of scrub had increased, with Sea Buckthorn, in particular, prolific to the west and south of the Lake.

Smith (2005) conducted a detailed botanical survey of the dune ridges and adjacent dune grassland in spring and summer 2005, identifying all the vascular plants and recording their relative abundance (Appendix 1). He also noted topography, land-use and habitat condition. Most of his study area consisted of undulating mobile (yellow) dunes dominated by Lyme-grass, Marram and Sand Couch. There was a local abundance of Sea Holly and Sea Spurge. The back-slope of the eastern ridge, with a gradient of 30 – 45o, consisted of semi-fixed dunes with a high plant species-richness. Similar vegetation occurred on an area of low, undulating semi-fixed dunes which extended for about 400m south from Crosby Baths. This habitat was maintained by moderate trampling, Rabbit-grazing and a rain of blown sand from the mobile dunes and foreshore. Frequent sandy footpaths ran east-west through the eastern dune ridge but blow-out development was quite limited, indicating that public pressure was not excessive at that time, as noted earlier by Edmondson (1995).

The more recently formed ridge on the foreshore west of the promenade was steep-sided, susceptible to trampling damage and quite unstable with vegetation (mainly Lyme-grass) largely confined to the crest. Typical fixed (grey) dune vegetation was largely restricted to two reprofiled mounds north and south of the pumping station. The southernmost section of the eastern dune ridge, from the Marina sluice to the Free-port boundary, had also been reprofiled in the past to produce a plateau-like area of heavily Rabbit-grazed semi-fixed dunes with patches of Marram. North of the sluice were several large clumps of Sea Buckthorn.

Smith’s (2005) survey identified a total of 141 vascular plants (Appendix 1). Only 31 (22%) of these were non-native or introduced native taxa. Nine regionally or nationally notable plants were found. The Nationally Rare Dune Wormwood occurred as a single flourishing specimen just south of the pumping station (Fig. 2). Discovered in 2004, it was thought new to Britain (Smith & Wilcox 2006) until a second site in South Wales was reported (Twibell 2007). Both Twibell (2007) and Clement (2006) argued that this sub-species was native in Britain, having been overlooked or previously recorded as “alien”.  The Crosby plant was subsequently joined by three smaller individuals that had evidently grown from seed (Smith 2008; 2010a). Prof. Joan Vallés-Xirau of Barcelona University made a visit to see this small population in September 2008, collecting (with permission) some samples for his genetics research.  He wrote to Sefton’s Coast & Countryside Service (Vallés-Xirau in litt. 2008) detailing the botanical interest and condition of this dune area and emphasising the importance of its future conservation. In 2015, the Millennium Seed Bank at Kew requested a sample of seed from this population.

Also present in Smith’s study area was the Isle of Man Cabbage, a Nationally Scarce British endemic largely confined to Northwest England coasts. The Crosby colony on the central section of the inner dune ridge originated as a translocation in 1992 from a relict population about to be destroyed by development at Blundellsands (Smith 2007). It was monitored regularly and increased to about 650 plants in 2011. In the latter year, the dunes occupied by the Isle of Man Cabbage were removed for the Hightown coast protection scheme mentioned earlier (Fig. 3). Before works commenced, volunteers transplanted many small rosettes to the outer dune ridge in a rescue operation. During the 2011/12 winter, large quantities of sand from the extracted inner ridge were blown across the Park (Fig. 4). Despite heavy human trampling the remnants of the ridge slowly and partially re-vegetated over the next few years. An unexpected event was the appearance of large numbers of Isle of Man Cabbage plants, presumably from long-buried seed. By 2015, these totalled 1361 individuals, perhaps the largest population in Britain (Smith & Lockwood in press) (Fig. 5). The translocated colony on the outer ridge also increased, reaching 211 plants by 2015 (Smith & Lockwood in press). The disturbed ground of the inner ridge was also re-colonised by large populations of Sea Holly and Sea Spurge, both being regionally notable species. The Nationally Rare coastal form of Groundsel and the uncommon coastal grass, Rush-leaved Fescue, also appeared.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fig. 2. Dune Wormwood near the pumping station.

 

 

 

 

 

 

 

 

 

 

Fig. 3. Crosby inner ridge after sand-extraction in autumn 2011

 

 

 

 

 

 

 

 

 

Fig. 4. Sand-blow across the Park in winter 2011/12 after removal of the inner ridge

 

 

 

 

 

 

 

 

 

Fig. 5. Recovery of Isle of Man Cabbage on Crosby inner dune ridge, June 2015

Smith (2012) conducted a botanical survey of the 2ha nature reserve in the south-east corner of the Marine Lake. Several major vegetation types were identified as follows:

  • Wet woodland dominated by Alder up to 10m tall, with occasional Broad-leaved Osier, Grey Willow and Goat Willow, etc.
  • Marshy grassland with Red Fescue, Creeping Bent, Yorkshire-fog, Creeping Buttercup, False Fox-sedge and several rush species. Southern Marsh-orchids occurred sporadically and some areas supported Marsh Helleborines. The eastern fringe was being invaded by dense Sea Buckthorn and scattered Alder
  • Tall-herb communities on spoil excavated from the scrapes and ponds, comprising Great Willowherb and Reed Canary-grass, together with patches of Creeping Thistle, Dotted Loosestrife, Michaelmas-daisy, Japanese Rose, etc.
  • Brackish-water communities on the lake fringe characterised by dense stands of Sea Club-rush with patches of Sea Milkwort, while transition zones with the marshy grassland supported much Parsley Water-dropwort.
  • Ponds with spreading marginal vegetation consisting of Bulrush, with Sea Cub-rush, Soft Rush and Tufted Forget-me-not, etc.

A total of 101 vascular plants was identified (Appendix 2), plus eight additional taxa recorded during visits in 2004/05. Most of the plants recorded are common in Sefton, only six being listed as regionally or nationally notable. Nevertheless, this was quite high biodiversity for such a small area. Of particular interest was the presence of four orchid species and several indicators of brackish-water conditions, such as Parsley Water-dropwort which is quite localised on the Sefton Coast.

Smith & Lockwood (2010) studied the frontal dune ridge west of the promenade in 2010. The developing ridge was estimated to be 800m long, up to 30m wide and covered about 2.2ha. Only 30 vascular plants were recorded, two being regionally notable (Appendix 3). Where present, the vegetation was dominated by the dune-forming grasses, Sand Couch, Marram and Lyme-grass, the back-slope of the central region being a little more sheltered and stable with a wider range of species. An incipient strandline along the dune frontage consisted largely of scattered Sea Rocket. The ridge was subject to heavy and uncontrolled informal recreation, leading to loss of vegetation, severe wind-erosion and the deposition of large amounts of sand on the adjacent promenade. This required frequent mechanical clearance and had broken down the promenade railings in several places (Fig. 6).

 

 

 

 

 

 

 

 

 

Fig. 6.  Sand-blow, Crosby Promenade

Most recently, Smith et al. (in press) reported the discovery of Sea Couch in July 2016 on dunes to the west of Crosby baths (Fig. 7). This coastal grass was thought extinct in South Lancashire, Crosby being perhaps the only locality in Northwest England north of the Dee Estuary. Its hybrid with Sand Couch was already known from the southern part of the Park.

Casual observations in recent years have revealed other interesting native plant species in the Park including, in some years, dozens of Bee Orchids, especially on the lower parts of the two fixed dune mounds. Here, is also a large population of Rough Hawkbit, otherwise rare on the Sefton Coast. A marshy area adjacent to the boating lake supports important concentrations of Slender Spike-rush (Smith 2010b) and Southern Marsh-orchid, while the boating lake itself has dense growths of Fennel-leaved Pondweed (Appendix 5).

 

 

 

 

 

 

 

 

 

 

 

Fig. 7. Sea Couch, Crosby Baths carpark, July 2016

Non-native plants

Crosby Coastal Park has long been renowned for a wide variety of non-native plants, many having their only location on the Sefton Coast. At least 133 taxa have been listed since 2004 (Appendix 4), new ones being identified almost every year. Edmondson (1995) recorded an additional 18 taxa not seen subsequently. A high proportion of these plants originate from adjacent gardens and from the dumping of garden waste along the eastern boundary of the site. A few are of transient occurrence, though many have persisted for a decade or more. Of particular interest is the presence of at least five taxa of Evening-primrose (Oenothera). Originating mainly from North America in the 19th century, these include the rare hybrid O. ×britannicum (Large-flowered × Small-flowered Evening-primrose). First seen in 2005, it was not identified until July 2016 when specimens were submitted to the national expert on this group, Rosemary Murphy. This striking plant (Fig. 8) is known from only about eight hectads in Britain (BSBI maps).

 

 

 

 

 

 

 

 

 

 

Fig. 8. Hybrid Evening-primrose Oenothera ×britannica, near Crosby Baths

 

 

 

 

 

 

 

 

 

 

Fig. 9. Triplet Lily near Crosby Baths, June 2016

One of the garden escapes, the attractive Triplet Lily, is particularly rare nationally (Smith & Wilcox 2006), having been recorded in the wild at only one other locality. It was first noted in 2004 and was still present twelve years later (Fig. 9). It is important to note here that only two non-native species, Sea Buckthorn and Japanese Rose, have become invasive and problematic in the Park area.

Assessment

Crosby Coastal Park supports a remarkably high diversity of vascular plants. The Appendices list 200 native taxa, together with 159 non-native plants, making a grand total of 359 (44% alien). This is more than twice the number of plants mentioned in the LWS citation. However, it is likely that several species were missed as few visits were made in spring and common plants were not always recorded. Although the proportion of non-native taxa seems high, this is comparable to the 40% figure for the coastal zone as a whole (Smith 2015). Twenty-two (11%) of the natives are regionally or nationally notable (Table 1). This is a much smaller proportion than the 28% for the entire Sefton Coast (Smith 2015), probably because of the paucity of dune-slack vegetation which supports many notable species coastwide.

All coastal sand-dune habitats are listed on Annex 1 of the EU Habitats Directive, with fixed (grey) dunes afforded Priority Status. While much of the Sefton Coast sand-dune system is presently considered to be in unfavourable or unfavourable-recovering condition, the Crosby dunes probably qualify for favourable condition status, due to their immaturity, relative mobility, lack of scrub and high plant species-richness. Nevertheless, both dune ridges have been severely damaged by sand-extraction and uncontrolled recreational pressure, leading to sand-blow inland and the formation of blow-outs. However, the open nature of the habitat creates opportunities for a range of pioneer species, including the British endemic Isle of Man Cabbage, for which this is probably now the best site in the country (and therefore in the world). The Park is also nationally important as one of only two British localities for Dune Wormwood.

Although a high proportion of the Park’s area is amenity grassland, this has become markedly more species-rich over the last few decades, this increased diversity being assisted by relaxation of mowing frequency in some areas (Fig. 10). The wetland habitats associated with the boating lake and the nature reserve also contribute a wide range of additional plants, including several notable species.

Table 1. Regionally and nationally notable vascular plants recorded in the study area

 NR = Nationally Rare; NS = Nationally Scarce; NT = Near Threatened; WL = Waiting List; SCI = Species of Conservation Importance in North West England (italics = England Red List)

Taxon

English name

Status

Taxon

English name

Status

Artemisia campestris ssp. maritima

Dune Wormwood

NR, WL, WL

Juncus ranarius

Frog Rush

SCI

Centaurium pulchellum

Lesser Centaury

SCI

Myosotis ramosissima

Early Forget-me-not

SCI

Coincya monensis ssp. monensis

Isle of Man Cabbage

NS, SCI

Oenanthe lachenalii

Parsley Water-dropwort

NT, SCI

Dactylorhiza incarnata ssp. coccinea

Early Marsh-orchid

NS, NT, SCI

Orobanche minor

Common Broomrape

SCI

Dactylorhiza purpurella

Northern Marsh-orchid

SCI

Phleum arenarium

Sand Cat’s-tail

NT, SCI

Eleocharis uniglumis

Slender Spike-rush

SCI

Puccinellia distans

Reflexed Saltmarsh-grass

SCI

Epipactis palustris

Marsh Helleborine

NT, SCI

Schoenoplectus tabernaemontani

Grey Club-rush

SCI

Eryngium maritimum

Sea Holly

NT, SCI

Senecio vulgaris ssp. denticulatus

Groundsel (coastal form)

NR

Euphorbia paralias

Sea Spurge

SCI

Stachys arvensis

Field Woundwort

NT, NT

Festuca arenaria

Rush-leaved Fescue

SCI

Triglochin palustris

Marsh Arrowgrass

NT, SCI

Fumaria bastardii

Tall Ramping-fumitory

SCI

Valerianella locusta

Common Cornsalad

SCI

 

 

 

 

 

 

 

 

 

 

Fig. 10. Floristic diversity, Crosby Coastal Park, 2014

Conservation management

Much of the Park grassland is managed by regular mowing for recreational purposes, which restricts the variety of plantlife. However, as previously noted, the mowing regime has been relaxed in some areas in recent years, resulting in more varied vegetation (Fig. 9). About 0.4ha of sandy dune grassland 150m south of Crosby Baths was fenced off about a decade ago, leading to a diverse open sward with Evening-primroses and other duneland flora.

Sea Buckthorn and Japanese Rose scrub seem to be increasing and control of these invasive species, as elsewhere along the coast, is justified. The recently discovered population of Sea Couch near Crosby Baths is directly threatened by a spreading canopy of Sea Buckthorn.

Smith & Lockwood (2010) described an urgent need for active management of the frontal dune ridge at Crosby, including fencing the ridge with delineated routes from the promenade to the shore to reduce trampling pressure. They also suggested use of brushwood fencing to trap sand, coupled with Marram planting, the aim being to promote dune development westwards and reduce sand-blow onto the promenade which has required frequent mechanical clearance for many years. This problem might best be tackled through an integrated management plan for the Coastal Park which could also address similar issues affecting the inner dune ridge, including blow-out development in the northern section and sand-blow into the Marine Lake further south. Such management would also create more amenable surroundings for tourists visiting the Another Place artwork.

Further studies of the Park’s habitats and species seem justified. In particular, an update of the NVC survey is now long overdue, having last taken place in 2004.

Acknowledgements:

I am grateful to Mike Wilcox and Jesse Tregale for help in finding and identifying some of the plants. My thanks are also due to Patricia Lockwood for assistance in the field.

References:

Clement, E.J. (2006).  Could Artemisia campestris subsp. maritima be native?  BSBI

News 103: 4.

Edmondson, M.R., Edmondson, S.E. & Gateley, P.S. (1988). National sand dune vegetation

survey Sefton Coast. Division 1 Seaforth to Hightown. Nature Conservancy Council.

Edmondson, S. (1995). National Vegetation Classification and basic soil survey, Seaforth to Hall                       

Road, Crosby. Unpublished report, Sefton Coast & Countryside Archive.

Gateley, P. S. & Michell, P. E. (2004). Sand dune survey of the Sefton Coast. 

Report by TEP, Warrington to Sefton Metropolitan Borough Council, Bootle.

Smith, P.H. (2005). Botanical interest of Crosby Sand-dunes, Merseyside. Unpublished

report.

Smith, P.H. (2007). Successful translocation of Coincya monensis ssp. monensis on the

Sefton Coast, Merseyside.  BSBI News 106: 16-19.

Smith, P.H. (2008). Increase in Artemisia campestris ssp. maritima at Crosby sand dunes,

Merseyside.  BSBI News 107: 28-29.

Smith, P.H. (2010a). Sefton Coast rare plants. In: A.T. Worsley, G. Lymbery, V.J.C.

Holden & M. Newton  (eds.) Seftons Dynamic Coast, pp. 225-238. Sefton Technical

Services Department, Southport.

Smith, P.H. (2010b). Changing status of Eleocharis uniglumis on the Sefton Coast,

Merseyside (v.c. 59). BSBI News 115: 18-29.

Smith, P.H. (2012). Sefton Coast Landscape Partnership Scheme Coastal Trails Project

– Botanical Assessment. 1. Crosby Nature Trail. Unpublished report to Sefton Coast &

Countryside Service, Ainsdale.

Smith, P.H. (2015). A revision of the inventory of vascular plants for the Sefton Coast,

north Merseyside (v.c. 59, South Lancashire), with particular reference to the 2014 Red

List for England. BSBI News 129: 36-40.

Smith, P.H. & Lockwood, P.A. (2010). Sand-dunes on Crosby beach. Unpublished

report.

Smith, P.H. & Lockwood, P.A. (in press). Changing status of Coincya monensis ssp.

monensis (Isle of Man Cabbage) on the Sefton Coast (v.c. 59, South Lancashire). BSBI

News.

Smith, P.H. & Wilcox, M.P. (2006a). Artemisia campestris ssp. maritima, new to Britain,

on the Sefton Coast, Merseyside.  BSBI News103: 3

Smith, P.H. & Wilcox, M.P. (2006b). Another record of Triteleia laxa on Merseyside.

BSBI News 102: 49.

Smith, P.H., Wilcox, M.P. & Tregale B.A. (in press). Re-discovery of Elytrigia atherica

(Sea Couch) in v.c. 59 (South Lancashire). BSBI News.

Stace, C.A. (2010). New flora of the British Isles third edition. Cambridge University

Press, Cambridge.

Twibell, J.D. (2007).  On the status of Artemisia campestris ssp. maritima as a native.

BSBI News 104: 21-23.

 

 

Appendix 1.  Vascular plants of Crosby Coastal Park dune-ridges, 2005

r = rare; o = occasional; f = frequent; a = abundant; l = locally; v = very. NR = Nationally Rare; NS = Nationally Scarce; SCI = Species of Conservation Importance in North West England; NT = Near Threatened; WL = Waiting List (italics = England Red Data list) * = non-native / introduced taxon.

Taxon

English name

Freq.

Notable

Acer pseudoplatanus

Sycamore

r

 

Achillea millefolium

Yarrow

o

 

Agrostis capillaris

Common Bent

o

 

Agrostis stolonifera

Creeping Bent

lf

 

Aira caryophyllea

Silver Hair-grass

a

 

Aira praecox

Early Hair-grass

la

 

Alnus incana*

Grey Alder

r

 

Ammophila arenaria

Marram

a

 

Anisantha sterilis

Barren Brome

vlf

 

Anthoxanthum odoratum

Sweet Vernal-grass

o

 

Anthyllis vulneraria

Kidney Vetch

la

 

Apera interrupta*

Dense Silky-bent

vlf

 

Aquilegia vulgaris*

Columbine

r

 

Arctium minus

Lesser Burdock

r

 

Armoracia rusticana*

Horse-radish

r

 

Artemisia absinthium

Wormwood

r

 

Artemisia campestris ssp. maritima

Dune Wormwood

r

NR, WL, WL

Artemisia vulgaris

Mugwort

r

 

Bellis perennis

Daisy

vlf

 

Beta vulgaris ssp. maritima

Sea Beet

r

 

Blackstonia perfoliata

Yellow-wort

r

 

Brassica napus ssp. oleifera*

Oil-seed Rape

r

 

Bromus hordeaceus

Soft Brome

o

 

Cakile maritima

Sea Rocket

r

 

Carex arenaria

Sand Sedge

f

 

Carex otrubae

False Fox-sedge

r

 

Centaurium erythraea

Common Centaury

o

 

Cerastium fontanum

Common Mouse-ear

lf

 

Cerastium semidecandrum

Little Mouse-ear

lf

 

Chamerion angustifolium

Rosebay Willowherb

r

 

Chenopodium album

Fat-hen

r

 

Cirsium arvense

Creeping Thistle

f

 

Cirsium vulgare

Spear Thistle

o

 

Claytonia perfoliata*

Spring Beauty

vla

 

Cochlearia danica

Danish Scurvy-grass

r

 

Coincya monensis ssp. monensis

Isle of Man Cabbage

o

NS, SCI

Convallaria majus*

Lily-of-the-valley

r

 

Cotoneaster hjelmqvistii*

Hjelmqvist’s Cotoneaster

r

 

Crepis capillaris

Smooth Hawk’s-beard

o

 

Dactylis glomerata

Cock’s-foot

r

 

Dactylorhiza praetermissa

Southern Marsh-orchid

r

 

Dactylorhiza ×grandis

Hybrid Marsh-orchid

vlo

 

Diplotaxis muralis*

Annual Wall-rocket

r

 

Elytrigia juncea

Sand Couch

a

 

Elytrigia repens

Common Couch

r

 

Epilobium hirsutum

Great Willowherb

r

 

Epilobium parviflorum

Hoary Willowherb

vlo

 

Equisetum arvense

Field Horsetail

f

 

Erophila verna

Common Whitlowgrass

o

 

Eryngium maritimum

Sea-holly

lf

SCI, NT

Euphorbia helioscopia

Sun Spurge

r

 

Euphorbia paralias

Sea Spurge

lf

SCI

Fallopia convolvulus

Black-bindweed

r

 

Festuca brevipila*

Hard Fescue

la

 

Festuca ovina

Sheep’s-fescue

lf

 

Festuca rubra

Red Fescue

a

 

Galium aparine

Goose-grass

r

 

Geranium molle

Dove’s-foot Crane’s-bill

o

 

Glaux maritima

Sea Milkwort

vla

 

Hippophae rhamnoides*

Sea Buckthorn

vla

 

Hirschfeldia incana*

Hoary Mustard

lo

 

Holcus lanatus

Yorkshire Fog

o

 

Honckenya peploides

Sea Sandwort

lf

 

Hordeum murinum

Wall Barley

r

 

Hyacinthoides hispanica*

Spanish Bluebell

r

 

Hyacinthoides ×massartiana*

Hybrid Bluebell

r

 

Hypochaeris radicata

Cat’s-ear

f

 

Juncus articulatus

Jointed Rush

vlf

 

Juncus conglomeratus

Common Rush

vlo

 

Lavandula ×intermedia*

Garden Lavender

r

 

Leontodon hispidus

Rough Hawkbit

vlf

 

Leucanthemum vulgare

Oxeye Daisy

vlf

 

Leymus arenarius

Lyme-grass

a

 

Lolium perenne

Perennial Rye-grass

o

 

Lolium ×boucheanum

Hybrid Rye-grass

r

 

Lotus corniculatus

Bird’s-foot Trefoil

f

 

Lupinus arboreus*

Tree Lupin

lo

 

Luzula campestris

Field Wood-rush

o

 

Luzula multiflora ssp. congesta

Heath Wood-rush

r

 

Malva sylvestris

Common Mallow

r

 

Matricaria discoidea*

Pineapple-weed

r

 

Medicago lupulina

Black Medick

la

 

Medicago sativa*

Lucerne

lf

 

Melilotus alba*

White Melilot

la

 

Melilotus altissimus*

Tall Melilot

r

 

Melilotus officinalis*

Ribbed Melilot

r

 

Myosotis arvensis

Field Forget-me-not

r

 

Myosotis ramosissima

Early Forget-me-not

r

SCI

Oenanthe crocata

Hemlock Water-dropwort

r

 

Oenothera biennis*

Common Evening-primrose

lo

 

Oenothera cambrica*

Small-flowered Evening-primrose

lf

 

Oenothera ×fallax*

Intermediate Evening-primrose

lf

 

Oenothera glazioviana*

Large-flowered Evening-primrose

lf

 

Ononis repens

Common Restharrow

r

 

Papaver somniferum*

Opium Poppy

r

 

Persicaria amphibium

Amphibious Bistort

r

 

Phleum arenarium

Sand Cat’s-tail

vlf

SCI

Plantago coronopus

Buck’s-horn Plantain

lf

 

Plantago lanceolata

Ribwort Plantain

f

 

Plantago major

Greater Plantain

r

 

Poa annua

Annual Meadow-grass

lf

 

Poa humilis

Spreading Meadow-grass

o

 

Potentilla anserina

Silverweed

lf

 

Potentilla reptans

Creeping Cinquefoil

r

 

Rosa rugosa*

Japanese Rose

vla

 

Rubus caesius

Dewberry

vlf

 

Rumex acetosa

Common Sorrel

r

 

Rumex acetosella

Sheep’s Sorrel

la

 

Rumex crispus

Curled Dock

o

 

Rumex obtusifolius

Broad-leaved Dock

r

 

Rumex ×pratensis

Hybrid Dock

o

 

Sagina procumbens

Procumbent Pearlwort

o

 

Salix cinerea

Grey Willow

r

 

Salix viminalis

Osier

r

 

Salix ×fragilis*

Hybrid Crack-willow

r

 

Sambucus nigra

Elder

r

 

Saponaria officinalis*

Soapwort

r

 

Sedum acre

Biting Stone-crop

la

 

Senecio jacobaea

Common Ragwort

f

 

Senecio squalidus*

Oxford Ragwort

f

 

Senecio vulgaris

Groundsel

f

 

Silene latifolia

White Campion

r

 

Sisymbrium officinale

Hedge Mustard

r

 

Sisymbrium orientale*

Eastern Rocket

r

 

Solanum dulcamara

Bittersweet

r

 

Sonchus oleraceus

Smooth Sowthistle

o

 

Spergularia marina

Lesser Sea-spurrey

r

 

Stellaria media

Common Chickweed

r

 

Taraxacum sect. Ruderalia

Dandelion

f

 

Tragopogon pratensis

Goat’s-beard

r

 

Trifolium arvense

Hare’s-foot Clover

lf

 

Trifolium dubium

Lesser Trefoil

o

 

Trifolium pratense

Red Clover

o

 

Trifolium repens

White Clover

la

 

Triglochin palustris

Marsh Arrow-grass

r

SCI, NT

Tripleurospermum maritimum

Sea Mayweed

o

 

Tussilago farfara

Colt’s-foot

o

 

Ulex europaea

Gorse

r

 

Urtica dioica

Common Nettle

r

 

Vicia sativa

Common Vetch

o

 

Vicia sepium             

Bush Vetch

o

 

Total 141 taxa

 

 

 

Appendix 2. Vascular plant list for Crosby Marine Lake nature reserve, August 2012

Taxon

English name

Freq.

Status

Agrostis stolonifera

Creeping Bent

a

 

Alnus glutinosa

Alder

la

 

Angelica archangelica*

Garden Angelica

r

 

Apium nodiflorum

Fool’s Water-cress

r

 

Aster sp.*

Michaelmas-daisy

la

 

Atriplex prostrata

Spear-leaved Orache

vlf

 

Bellis perennis

Daisy

r

 

Betula pendula

Silver Birch

r

 

Blackstonia perfoliata

Yellow-wort

r

 

Bolboschoenus maritimus

Sea Club-rush

la

 

Calystegia silvatica*

Great Bindweed

lf

 

Cardamine pratensis

Cuckoo-flower

lf

 

Carex flacca

Glaucous Sedge

la

 

Carex otrubae

False Fox-sedge

la

 

Centaurium erythraea

Common Centaury

lo

 

Cerastium fontanum

Common Mouse-ear

o

 

Cirsium arvense

Creeping Thistle

f

 

Cirsium vulgare

Spear Thistle

r

 

Convolvulus arvensis

Field Bindweed

r

 

Crepis capillaris

Smooth Hawk’s-beard

r

 

Cynosurus cristatus

Crested Dog’s-tail

r

 

Dactylis glomerata

Cock’s-foot

r

 

Dactylorhiza praetermissa

Southern Marsh-orchid

lf

 

Eleocharis palustris

Common Spike-rush

la

 

Elytrigia repens

Common Couch

r

 

Epilobium hirsutum

Great Willowherb

la

 

Epilobium parviflorum

Hoary Willowherb

o

 

Epilobium ×rivulare

Hybrid Willowherb

lf

 

Epipactis palustris

Marsh Helleborine

lf

SCI, NT

Equisetum arvense

Field Horsetail

a

 

Festuca rubra

Red Fescue

a

 

Filipendula ulmaria

Meadowsweet

o

 

Galium aparine

Cleavers

o

 

Galium palustre

Marsh Bedstraw

o

 

Glaux maritima

Sea Milkwort

lf

 

Hippophae rhamnoides*

Sea Buckthorn

la

 

Holcus lanatus

Yorkshire-fog

f

 

Iris pseudacorus

Yellow Iris

o

 

Juncus articulatus

Jointed Rush

f

 

Juncus bufonius

Toad Rush

r

 

Juncus conglomeratus

Common Rush

o

 

Juncus effusus

Soft Rush

o

 

Juncus inflexus

Hard Rush

lf

 

Lathyrus pratensis

Meadow Vetchling

f

 

Leontodon saxatilis

Lesser Hawkbit

lf

 

Lycopus europaeus

Gypsywort

lf

 

Lysimachia punctata*

Dotted Loosestrife

la

 

Lythrum salicaria

Purple Loosestrife

o

 

Medicago lupulina

Black Medic

r

 

Mentha aquatica

Water Mint

lf

 

Myosotis laxa

Tufted Vetch

lf

 

Odontites vernus

Red Bartsia

o

 

Oenanthe crocata

Hemlock Water-dropwort

o

 

Oenanthe lachenalii

Parsley Water-dropwort

la

SCI, NT

Ophrys apifera

Bee Orchid

r

 

Persicaria amphibia

Amphibious Bistort

o

 

Phalaris arundinacea

Reed Canary-grass

la

 

Phleum bertolonii

Smaller Cat’s-tail

r

 

Phleum pratense

Timothy

r

 

Phragmites australis

Common Reed

f

 

Plantago lanceolata

Ribwort Plantain

r

 

Plantago major

Great Plantain

o

 

Poa trivialis

Rough Meadow-grass

la

 

Potentilla anserina

Silverweed

f

 

Potentilla reptans

Creeping Cinquefoil

lf

 

Prunella vulgaris

Selfheal

r

 

Pulicaria dysenterica

Common Fleabane

o

 

Ranunculus acris

Meadow Buttercup

o

 

Ranunculus repens

Creeping Buttercup

f

 

Rosa rugosa*

Japanese Rose

r

 

Rubus caesius

Dewberry

r

 

Rubus fruticosus agg.

Bramble

lf

 

Rumex crispus

Curled Dock

o

 

Rumex sanguineum

Wood Dock

r

 

Sagina procumbens

Procumbent Pearlwort

r

 

Salix caprea

Goat Willow

r

 

Salix cinerea ssp. oleifolia

Grey Willow

o

 

Salix ×fragilis f. basfordiana*

Hybrid Crack-willow

lo

 

Salix ×smithiana*

Broad-leaved Osier

lf

 

Schoenoplectus tabernaemontani

Grey Club-rush

r

SCI

Scrophularia sp.

Figwort

vla

 

Senecio jacobaea

Common Ragwort

o

 

Silene latifolia

White Campion

r

 

Solanum dulcamara

Bittersweet

lf

 

Sonchus arvensis

Perennial Sowthistle

o

 

Sonchus asper

Prickly Sowthistle

r

 

Stachys palustris

Marsh Woundwort

lf

 

Symphytum ×uplandicum*

Russian Comfrey

r

 

Taraxacum agg.

Dandelion

o

 

Tragopogon pratensis

Goat’s-beard

r

 

Trifolium dubium

Lesser Trefoil

r

 

Trifolium hybridum

Alsike Clover

o

 

Trifolium pratense

Red Clover

r

 

Trifolium repens

White Clover

f

 

Triglochin maritima

Sea Arrowgrass

lo

 

Tripleurospermum maritimum

Sea Mayweed

r

 

Tussilago farfara

Colt’s-foot

o

 

Typha latifolia

Bulrush

la

 

Urtica dioica

Common Nettle

o

 

Veronica serpyllifolia

Thyme-leaved Speedwell

r

 

Vicia cracca

Tufted Vetch

la

 

Total 101 taxa (9 alien)

 

 

3 notable

 

Other vascular plants recorded in 2004/05 which may still be present

Taxon

English name

Freq.

Status

Berula erecta

Lesser Water-parsnip

la

 

Dactylorhiza incarnata ssp. coccinea

Early Marsh-orchid

o

NS, NT, SCI

Dactylorhiza ×grandis

Hybrid Marsh-orchid

r

 

Juncus ranarius

Frog Rush

r

SCI

Raphanus raphanistrum ssp. maritimus

Sea Radish

r

 

Rumex ×pratensis

Hybrid Dock

r

 

Salix ×reichardtii

Hybrid Willow

r

 

Triglochin palustris

Marsh Arrowgrass

lo

SCI

 

 

 

3 notable

 

Appendix 3. Vascular plants of Crosby shore dunes, those present on the back-slope of the central section being indicated #

Taxon

English name

Frequency

Status

Ammophila arenaria #

Marram

a

 

Anthyllis vulneraria #

Kidney-vetch

r

 

Artemisia vulgaris

Mugwort

r

 

Cakile maritima #

Sea Rocket

o

 

Chenopodium album #

Fat-hen

o

 

Cirsium arvense #

Creeping Thistle

f

 

Cirsium vulgare

Spear Thistle

r

 

Conyza sumatrensis*

Guernsey Fleabane

r

 

Crepis capillaris #

Smooth Hawk’s-beard

o

 

Elytrigia juncea #

Sand Couch

lf

 

Eryngium maritimum #

Sea Holly

o

SCI, NT

Euphorbia paralias #

Sea Spurge

o

SCI

Festuca rubra #

Red Fescue

a

 

Hirschfeldia incana* #

Hoary Mustard

r

 

Hypochaeris radicata #

Cat’s-ear

f

 

Leymus arenarius #

Lyme-grass

a

 

Lotus corniculatus #

Bird’s-foot-trefoil

o

 

Medicago sativa* #

Lucerne

r

 

Oenothera sp.* #

Evening-primrose

o

 

Plantago lanceolata #

Ribwort Plantain

o

 

Poa pratensis #

Smooth Meadow-grass

o

 

Rumex crispus #

Curled Dock

o

 

Salix ×reichardtii #

Hybrid Willow

r

 

Senecio jacobaea #

Common Ragwort

o

 

Senecio squalidus #

Oxford Ragwort

o

 

Senecio vulgaris #

Groundsel

r

 

Solanum lycopersicum* #

Tomato

r

 

Sonchus oleraceus #

Smooth Sowthistle

o

 

Taraxacum officinale agg. #

Dandelion

o

 

Tripleurospermum maritimum #

Sea Mayweed

o

 

Total 30 taxa (5 non-native)

 

 

2 notable

                                  

Appendix 4. Crosby Coastal Park – non-native and introduced vascular plants (2004 to July 2016)

Taxon

English name

First recorded

Agrostemma githago

Corncockle

6/14

Agrostemma gracile

Slender Corncockle

6/14

Allium schoenoprasum

Chives

6/04

Alnus incana

Grey Alder

10/05

Amaranthus retroflexus

Common Amaranth

8/04

Ammi majus

Bullwort

6/14

Angelica archangelica

Garden Angelica

8/04

Anisantha diandra

Great Brome

6/15

Antirrhinum majus

Snapdragon

9/15

Apera interrupta

Dense Silky-bent

6/11

Aquilegia vulgaris

Columbine

10/05

Argyranthemum frutescens

Canary Marguerite

7/16

Armoracia rusticana

Horse-radish

10/05

Aster novi-belgii

Confused Michaelmas-daisy

10/04

Aster x salignus

Common Michaelmas-daisy

10/04

Aubretia deltoidea

Aubretia

4/04

Avena sativa

Oat

6/12

Brassica napus ssp. oleifera

Oil-seed Rape

9/15

Borago officinalis

Borage

9/15

Bromopsis inermis

Hungarian Brome

7/16

Calendula officinalis

Pot Marigold

10/04

Calystegia silvatica

Great Bindweed

8/12

Centaurea cyanus

Cornflower

 

Centranthus ruber

Red Valerian

 

Claytonia perfoliata

Spring Beauty

10/05

Colchicum autumnalis

Autumn Crocus

9/15

Convallaria majus

Lily-of-the-valley

10/05

Conyza canadensis

Canadian Fleabane

8/04

Conyza sumatrensis

Guernsey Fleabane

10/10

Cortaderia richardii

Early Pampas-grass

9/15

Cosmos bipinnatus

Mexican Aster

9/15

Cotoneaster divaricatus

Spreading Cotoneaster

9/15

Cotoneaster hjelmqvistii

Hjelmqvist’s Cotoneaster

7/05

Cotoneaster lacteus

Late Cotoneaster

8/04

Cotoneaster simonsii

Himalayan Cotoneaster

9/15

Crambe cordifolia

Greater Sea-kale

6/14

Crinum ×powellii

Powell’s Cape-lily

8/04

Cyperus eragrostis

Pale Galingale

9/07

Cyperus longus

Galingale

9/06

Dianthus sp. (cultivar)

Pink

6/04

Diplotaxis muralis

Annual Wall-rocket

7/05

Dipsacus fullonum

Teasel

6/04

Erigeron glaucus

Seaside Daisy

6/04

Escallonia micrantha

Escallonia

7/16

Eschscholzia californica

Californian Poppy

6 14

Euonymus japonicus

Evergreen Spindle

6/04

Euphorbia characias

 

Mediterranean Spurge

7/04

Festuca brevipila

Hard Fescue

10/05

Foeniculum vulgare

Fennel

7/04

Fragaria ×ananassa

Garden Strawberry

8/04

Gaillardia grandiflora

Blanketflower

6/07

Geranium ×magnificum

Purple Crane’s-bill

6/04

Geranium sanguineum

Bloody Crane’s-bill

6/04

Gypsophila paniculata

Baby-s-breath

8/04

Hamamelis japonica

Japanese Witch-hazel

9/15

Helianthus annuus

Sunflower

7/08

Helianthus ×laetiflorus

Perennial Sunflower

9/15

Hemerocallis fulva

Orange Day-lily

7/06

Hieracium fictum

Hawkweed

5/12

Hippophae rhamnoides

Sea Buckthorn

10/05

Hirschfeldia incana

Hoary Mustard

9/04

Hordeum distichon

Two-rowed Barley

7/16

Hyacinthoides hispanica

Spanish Bluebell

10/05

Hyacinthoides ×massartiana

Hybrid Bluebell

10/05

Hydrangea macrophylla

Hydrangea

9/15

Iris germanica

Bearded Iris

5/04

Lactuca serriola

Prickly Lettuce

6/14

Lathyrus latifolius

Broad-leaved Everlasting-pea

6/14

Lavandula ×intermedia

Garden Lavender

4/04

Lavandula angustifolia

Garden Lavender

9/15

Lavandula stoechas

French Lavender

9/15

Lavatera thuringiaca

Garden Tree-mallow

9/07

Linaria purpurea 'Canon J. Went'

Purple Toadflax

9/15

Linum usitatissimum

Flax

6/15

Lobelia erinus

Garden Lobelia

6/04

Lobularia maritima

Sweet Alison

9/15

Lupinus arboreus

Tree Lupin

10/05

Lycium barbarum

Duke of Argyll’s Tea-plant

6/14

Lysimachia punctata

Dotted Loosestrife

8/04

Malcolmia maritima

Virginia Stock

9/15

Matricaria discoidea

Pineapple-weed

10/05

Matthiola incana

Hoary Stock

4/04

Medicago sativa

Lucerne

7/04

Melilotus alba

White Melilot

7/04

Melilotus altissimus

Tall Melilot

01/05

Melilotus officinalis

Ribbed Melilot

10/05

Mentha ×villosa

Apple Mint

4/04

Mirabilis jalapa

Marvel-of-Peru

9/15

Miscanthus sp.

Miscanthus

8/04

Muscari armeniacum

Garden Grape-hyacinth

4/04

Nigella damascena

Love-in-a-mist

6/04

Oenothera ×britannica

Hybrid Evening-primrose

7/16

Oenothera biennis

Common Evening-primrose

7/04

Oenothera cambrica

Small-flowered Evening-primrose

9/15

Oenothera fallax

Intermediate Evening-primrose

7/04

Oenothera glazioviana

Large-flowered Evening-primrose

7/04

Olearia macrodonta

New Zealand Holly

7/04

Origanum vulgare

Marjoram

8/08

Oxalis articulata

Pink-sorrel

6/04

Papaver pseudoorientale

Oriental Poppy

6/04

Papaver rhoeas var. hoffmanniana  

Common Poppy

6/07

Papaver somniferum

Opium Poppy

6/14

Persicaria amplexicaulis

Red Bistort

9/04

Pilosella aurantiaca

Fox-and-cubs

9/15

Prunus dulcis

Almond

9/15

Pseudosasa japonica

Arrow Bamboo

7/04

Reseda alba

White Mignonette

9/15

Rosa ×rothschildii

Hybrid Dog-rose

9/15

Rosa rugosa

Japanese Rose

10/05

Rosa spinosissima

Burnet Rose (cultivar)

7/16

Rosa virginiana

Virginian Rose

9/15

Salix ×fragilis

Hybrid Crack-willow

6/04

Salix ×fragilis forma basfordiana

Hybrid Crack-willow

6/04

Santolina chamaecyparissus

Lavender-cotton

7/04

Saponaria officinalis

Soapwort

10/05

Sedum “Herbstfreude”

Sedum “Autumn Joy”

10/04

Sedum rupestre

Reflexed Stonecrop

7/04

Senecio squalidus

Oxford Ragwort

5/15

Setaria viridis

Green Bristle-grass

8/04

Silene coeli-rosa

Rose-of-heaven

9/15

Silene coronaria

Rose Campion

6/14

Sisymbrium orientale

Eastern Rocket

6/07

Solanum lycopersicum

Tomato

10/10

Solanum tuberosum

Potato

9/07

Sorbus aria agg.

White-beam

7/16

Sorbus croceocarpa

Broad-leaved Whitebeam

9/15

Sorbus intermedia

Swedish Whitebeam

7/16

Spiraea ×cinerea

Bridewort

6/06

Stachys arvensis

Field Woundwort

9/15

Symphytum ×hidcotense

Hidcote Comfrey

5/04

Symphytum ×uplandicum

Russian Comfrey

8/12

Thalictrum minus

Lesser Meadow-rue

9/15

Tristagma uniflorum

Spring Starflower

7/04

Triteleia laxa

Triplet Lily

7/04

Triticum aestivum

Bread Wheat

6/04

Tropaeolum majus

Nasturtium

9/15

Verbena bonariensis

Argentinean Vervain

7/16

Veronica filiformis

Slender Speedwell

7/04

Veronica longifolia × V. spicata

Hybrid Speedwell

6/14

Vicia faba

Broad Bean

5/12

Vitis vinifera

Grape-vine

8/04

 Total 141 taxa

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Appendix 5. Additional non-native species listed by Edmondson (1995)

Taxon

English name

Ajuga reptans (cultivar)

Bugle

Berberis sp.

Barberry

Cerastium tomentosum

Snow-in-summer

Crocosmia ×crocosmiiflora

Montbretia

×Cupressocyparis leylandii

Leyland Cypress

Erysimum cheiri

Wallflower

Fallopia baldschuanica

Russian Vine

Heuchera sanguinea

Coral-bells

Kniphofia uvaria

Red-hot-poker

Leucanthemum ×superbum

Shasta Daisy

Leycesteria formosa

Himalayan Honeysuckle

Limnanthes douglasii

Meadow-foam

Populus alba

White Poplar

Pseudofumaria lutea

Yellow Corydalis

Saponaria ocymoides

Rock Soapwort

Senecio cinerea

Silver Ragwort

Tulipa gesneriana

Garden Tulip

Viola ×wittrockiana

Garden Pansy

 

Appendix 6. Other taxa mentioned in the text, or recorded on other occasions

Taxon

English name

First recorded

Alopecurus geniculatus

Marsh Foxtail

6/11

Arenaria serpyllifolia

Thyme-leaved Sandwort

5/15

Asplenium adiantum-nigrum        

Black Spleenwort

6/11

Asplenium ruta-muraria

Wall-rue

6/11

Asplenium trichomanes

Maidenhair Spleenwort

6/11

Centaurium scabiosa

Greater Knapweed

8/08

Centaurium pulchellum SCI

Lesser Centaury

8/08

Cerastium diffusum

Sea Mouse-ear

5/15

Dactylorhiza fuchsii

Common Spotted-orchid

6/10

Dactylorhiza purpurella SCI

Northern Marsh-orchid

6/15

Eleocharis uniglumis SCI

Slender Spike-rush

5/10

Elytrigia ×acuta

Hybrid Couch

9/10

Elytrigia atherica

Sea Couch

7/16

Festuca arenaria SCI

Rush-leaved Fescue

6/16

Fumaria bastardii SCI

Tall Ramping-fumitory

9/15

Fumaria muralis

Common Ramping-fumitory

9/15

Geranium dissectum

Cut-leaved Crane’s-bill

6/07

Geranium lucidum

Shining Crane’s-bill

9/07

Honckenya peploides

Sea Sandwort

6/14

Isolepis setacea

Bristle Club-rush

8/08

Myosotis discolor

Changing Forget-me-not

6/12

Orobanche minor SCI

Common Broomrape

7/16

Parietaria judaica

Pellitory-of-the-wall

9/15

Potamogeton pectinatus

Fennel-leaved Pondweed

7/16

Puccinellia distans SCI

Reflexed Saltmarsh-grass

8/08

Raphanus raphanistrum ssp. raphanistrum

Wild Radish

6/07

Senecio vulgaris ssp. denticulatus NR

Groundsel (coastal form)

5/15

Sorbus aucuparia

Rowan

7/16

Stachys arvensis NT NT

Field Woundwort

9/15

Stellaria graminea

Lesser Stitchwort

6/07

Valerianella locusta SCI

Lamb’s-lettuce

6/12

Vicia hirsuta

Hairy Tare

6/11