Holy Island is a botanist’s paradise, famed for its orchids but also home to many other fascinating plants. Its dune slack flora, in particular, is a thing of beauty, though from the village to the shoreline and quarry, there are interesting things to see at every turn. For more information, I strongly recommend this book.
Please note that this page and other site features are a work in progress. More plants will be added as they are photographed.
Orchids
Lindisfarne Helleborine
Epipactis sancta
The Lindisfarne Helleborine is one of Britain’s rarest orchids, known only from a small area of dune slacks on Holy Island. It is a delicate, often self-pollinating species, producing greenish flowers that are easy to overlook amid surrounding vegetation. Endemic to this single locality, it is a good example of how specialised and localised Britain’s flora can be.
Marsh Helleborine
Epipactis palustris
Marsh Helleborine is arguably one of Britain’s most striking orchids, typically found in calcareous wetlands such as dune slacks and fens. Its elegant spikes carry numerous flowers, each with a distinctive white lip marked with pink and purple. It is rather conspicuous species when in bloom.
Frog Orchid
Dactylorhiza viridis
Frog Orchid is a small and rather inconspicuous species of short turf, dunes and unimproved grassland. Its dense spike of greenish flowers, often flushed with brown or purple, can be easily overlooked. Formerly placed in the genus Coeloglossum, it is a distinctive orchid whose subtle colouring sets it apart from its more showy relatives.
The individual flowers are said to resemble tiny frogs, though that could equally apply to the muddy brown colour of many individuals.
Early Marsh-orchid
Dactylorhiza incarnata
Early Marsh-orchid is a characteristic species of calcareous wetlands, including dune slacks, fens and marshy grassland. Its dense spikes of flowers range from pale flesh-pink to deeper purplish tones, often accompanied by unspotted, narrow leaves. Flowering earlier than many related species, it can be rather abundant throughout dune slacks on the island.
Several subspecies of Early Marsh-orchid are known, often defined by the colour of their flowers. These are not covered here, but a good resource can be found here.
Northern Marsh-orchid
Dactylorhiza purpurella
Northern Marsh-orchid is a robust and variable species of damp grassland, dune slacks and coastal habitats, particularly in the north and west of Britain. Its dense flower spikes are typically rich purple, though paler forms occur, and the lower lip is roughly diamond-shaped.
Locally abundant in suitable conditions, this is probably the most abundant orchid on Holy Island. You would struggle to miss it in early summer.
Pyramidal Orchid
Anacamptis pyramidalis
Pyramidal Orchid is a distinctive and often abundant species of calcareous grassland and dunes, occupying drier habitats than many of the species above. Its vivid pink flowers are borne in a tightly packed, pyramidal spike that gradually elongates with age, making it one of our most recognisable orchids. Flowering in early to mid-summer, it can form impressive displays in suitable conditions.
Whilst the typical form of Pyramidal Orchid is pink, white-flowered variants also occur on the island, albeit rarely.
Coralroot Orchid
Corallorhiza trifida
Coralroot Orchid is a small and unusual species of damp woodland and dune slacks, often associated with mossy, shaded conditions. Lacking chlorophyll, it appears pale and leafless, deriving its nutrients from fungi in the soil rather than through photosynthesis. Even on Holy Island, it is a rare and quite special little plant.
Common Twayblade
Neottia ovata
Common Twayblade is a widespread and adaptable orchid of grassland, woodland edges and dune systems. It is easily recognised by its pair of broad, opposite leaves and its tall spike of numerous small green flowers.
Common Spotted-orchid
Dactylorhiza fuchsii
Common Spotted-orchid is one of Britain’s most widespread and familiar orchids, occurring in grassland, dune slacks, woodland edges and roadside verges. Its flower spikes carry numerous pale pink to lilac blooms, each intricately marked with darker loops and spots, while the leaves are typically boldly spotted.
Holy Island is one of the few places, locally at least, where pure white Common Spotted-orchids are quite common.
Wildflowers
Pirri-pirri-bur
Acaena novae-zelandiae
Pirri-pirri-bur, is a low-growing, mat-forming plant of coastal grassland and dunes, introduced to Britain from New Zealand. Its small, inconspicuous flowers give way to distinctive spiny burrs that readily cling to clothing and animal fur, aiding its spread. It is a prodigious weed on Holy Island, though one which can be encountered rather widely.
This species was introduced as a wool contaminant and was first recorded in the wild in the UK in 1901. The populations on Holy Island show a preference for fixed dunes.
Purple Milk-vetch
Astragalus danicus
Purple milk-vetch is a low-growing legume of dry, calcareous grassland, including coastal dunes. Its compact clusters of rich purple, pea-like flowers sit above finely divided, grey-green foliage, creating a striking display in late spring. Now scarce and local in Britain, it is a species of considerable conservation interest.
It is classified as ‘Endangered’ in
The Vascular Plant Red Data List for
Great Britain due to a
substantial decline since 1930.
Carline Thistle
Carlina vulgaris
A distinctive plant of dry, calcareous grassland, including dunes and limestone slopes. Its stiff, spiny leaves form a low rosette, from which arises a striking, star-like flower head surrounded by straw-coloured bracts. Unusual among thistles, the flower heads open in dry, sunny conditions and close in damp weather, a trait once used as a natural weather indicator.
Seaside Centaury
Centaurium littorale
Seaside Centaury is a delicate annual of coastal habitats, particularly dune slacks and salt marsh edges. Its slender stems bear clusters of small, star-like pink flowers that open in bright sunlight, adding subtle colour to short, open turf. It is quite widespread on the island but is perhaps best observed on the Snook.
Autumn Gentian
Gentianella amarella subsp. septentrionalis
Gentianella amarella subsp. septentrionalis is a diminutive but striking plant of short, calcareous turf, including coastal dunes and grassland. This uncommon subspecies has pale white flowers, contrasting with the pink flowers of the common variety, and is confined primarily to coastal areas of Scotland and Northern England. It flowers later than most of the species on this list.
Henbane
Hyoscyamus niger
Henbane is a striking and rather sinister plant of disturbed ground, coastal dunes and waste places. Its large, sticky, foul-smelling leaves and pale yellow flowers, intricately veined with purple and marked by a dark centre, give it a distinctive and somewhat eerie appearance. Long associated with folklore and medicine, it is highly toxic and now a scarce and local species in Britain.
Look for this one on disturbed ground around the village and harbour.
Common Sea-lavender
Limonium vulgare
Common Sea-lavender is a characteristic plant of salt marshes and estuarine mudflats in southern England, but is altogether rarer in the North East. Here, it grows on the rocky shore of Cuthbert’s Isle, its airy sprays of small, violet flowers, each held within a papery calyx, can create a soft purple haze in summer.
The colony on Holy Island was (and may still be) the most northernly on the east coast of England.
Grass-of-Parnassus
Parnassia palustris
This is a beautiful plant of calcareous flushes, fens and dune slacks. Its solitary white flowers, delicately veined with green and held above a basal rosette of leaves, are among the most elegant in the British flora. Flowering late in the season, it is a characteristic species of unspoilt, high-quality habitat.
Rough Clover
Trifolium scabrum
Trifolium scabrum is a small annual of dry, open ground, particularly in coastal grassland and sandy soils. Its compact flower heads consist of tiny pink to whitish florets that can be easily overlooked among short turf. It grows in bare, open areas with little competition and can often be hard to find.
Look for Rough Clover on the Whin outcrops at Lindisfarne Castle.
Scots Lovage
Ligusticum scoticum
Scots Lovage is a robust coastal plant of rocky shores, dunes, cliffs and maritime grassland. Its fleshy, aromatic leaves and rounded umbels of greenish-white flowers are well adapted to salt-laden winds and exposed conditions. Largely confined to northern and western coasts, the colony of Holy Island represents its most southerly outpost on the east coast of Britain.
It is thought that drought sensitivity and the requirement for cold, wet conditions for germination may be responsible for limiting its spread to more southerly areas.
Round-leaved Wintergreen
Pyrola rotundifolia subsp. rotundifolia
Rround-leaved Wintergreen is an elegant and rather local plant of dune slacks and fens. Its glossy, rounded evergreen leaves form a low rosette, from which rise slender stems bearing nodding, white, sweetly scented flowers. Often associated with base-rich, undisturbed habitats, it is a species of conservation concern.
Bog Pimpernel
Lysimachia tenella
This is a delicate creeping plant of damp, calcareous dune-slacks. Its slender stems bear small, rounded leaves and charming pink, striped star-like flowers that appear in summer.
Dwarf Mallow
Malva neglecta
Dwarf Mallow is a low-growing, often prostrate plant of disturbed ground, pavements and waste places. Its rounded, shallowly lobed leaves and small, pale pink flowers with darker veins give it a modest but attractive appearance.
This one is rather plentiful around the village, where it occurs at wall bases and on areas of waste ground.
Common Butterwort
Pinguicula vulgaris
Butterwort is a small carnivorous plant of wet heaths, flushes and calcareous wetlands. Its pale green, greasy leaves form a low rosette that traps small insects, supplementing its nutrient intake in poor soils. Above these, delicate purple flowers are borne on slender stems in early summer.
Tree-mallow
Malva arborea
A naturalised introduction, Tree Mallow is a tall, conspicuous plant of coastal cliffs, islands and maritime grassland. Its large, softly hairy leaves and pale pink to lilac flowers are quite distinctive.
Tree Lupin
Lupinus arboreus
Tree Lupin is a robust, shrubby plant of coastal dunes and sandy soils, introduced to Britain from western North America. Its tall spikes of yellow, pea-like flowers are often conspicuous, forming dense stands in suitable conditions.
While attractive, it can be invasive, altering dune habitats by fixing nitrogen and outcompeting native vegetation.
Parsley Water-dropwort
Oenanthe lachenalii
Oenanthe lachenalii is a slender plant of coastal salt marshes and damp grassland. Its finely divided leaves and loose umbels of small white flowers give it a delicate, airy appearance in summer.
Rather rare on the island, it occurs scantily in a few permanently damp dune slacks but is nowhere common.
Milk Thistle
Silybum marianum
Best found at the base of the Vicar’s Garden, Milk Thistle is a bold and distinctive plant of disturbed ground, roadsides, and coastal habitats. Large, glossy leaves display striking white marbling and sharp spines along their edges, while tall stems carry prominent purple flower heads that create an impressive sight.
Long associated with herbal medicine, it is likely a long-established introduction on Holy Island.
Brookweed
Samolus valerandi
Brookweed is a small and rather unobtrusive plant of damp ground, particularly in coastal habitats such as salt marshes and wet flushes. Its low rosette of fleshy leaves gives rise to slender stems bearing tiny white flowers, each delicately marked at the throat. Easily overlooked, it is a characteristic species of open, periodically inundated ground.
Hare’s-foot Clover
Trifolium arvense
A distinctive annual of dry, sandy soils, including dunes, heaths and disturbed ground. Its soft, cylindrical flower heads bristle with silky hairs, giving them a pale, silvery sheen reminiscent of a hare’s foot. It often thrives abundantly in open habitats, well-adapted to nutrient-poor conditions and sparse vegetation, and commonly appears throughout the village and harbour.
Blue Fleabane
Erigeron acris
Blue fleabane is a slender and often overlooked plant of dry, open ground, including dunes, grassland and disturbed soils. Its small, daisy-like flower heads are composed of numerous narrow rays, often tinged with lilac or purplish hues.
Rather localised, this one is best looked for in the quarry area.
Hound’s-tongue
Cynoglossum officinale
Hound’s-tongue, is a softly hairy plant of dry, often calcareous soils, including dunes, grassland and disturbed ground. Its dull reddish-purple flowers are borne in coiled clusters, while the elongated, velvety leaves are said to resemble a dog’s tongue, giving rise to its common name. The plant produces barbed burrs that readily cling to clothing and animal fur, aiding its dispersal.
Bugloss
Lycopsis arvensis
Bugloss is a rough, bristly annual of arable land, sandy soils and disturbed ground. Its small blue flowers, borne in coiled clusters, resemble those of forget-me-nots, though the plant itself is far coarser in texture.
Now much declined due to agricultural intensification, it is a scarce and local species of open, low-nutrient habitats.
Marsh Pennywort
Hydrocotyle vulgaris
Marsh Pennywort is a creeping plant of damp grassland, marshes and dune slacks. Its rounded, coin-like leaves are borne on slender stalks, forming spreading mats across wet ground.
This one is rather common across the island and can be found in most areas of suitable habitat.
Common Broomrape
Orobanche minor
Common Broomrape is a curious parasitic plant of grassland and dunes, most often associated with clovers. Lacking chlorophyll, it appears as a leafless spike of pale brown to purplish flowers, drawing all its nutrients from the roots of its host.
Shoreweed Littorella uniflora
Littorella uniflora is a small and specialised plant of clean, nutrient-poor waters, typically found along the margins of lakes, pools and dune slacks. Its tight rosettes of narrow, fleshy leaves often grow submerged or on wet sand, making it easy to overlook. The tiny, inconspicuous flowers are borne singly on short stems
Ferns, Horsetails & Clubmosses
Small Adder’s-tongue
Ophioglossum azoricum
Small Adder’s-tongue is a minute and easily overlooked fern of short, often coastal grassland and dune slacks. It typically produces a single, simple frond alongside a slender, fertile spike, both close to the ground.
Variegated Horsetail
Equisetum variegatum
Variegated Horsetail is a distinctive species of damp, often calcareous habitats, including dune slacks and lake margins. Its stiff, jointed stems are marked with characteristic black-and-white banding at the nodes, giving it a striking appearance. Often forming low, spreading patches, it is well adapted to open, seasonally wet conditions.
Lesser Clubmoss
Selaginella selaginoides
Lesser Clubmoss is a small and rather moss-like plant of damp grassland, heaths and flushes. Its delicate, creeping stems are clothed in tiny leaves, giving it a soft, low-growing appearance. Though easily overlooked, it is rather abundant across suitable habitats on the island.
Grasses, Rushes & Sedges
Sand Cat’s-tail
Phleum arenarium
A small annual grass of dry, sandy soils, particularly in coastal dunes and disturbed ground. Its short, dense, cylindrical flower spikes resemble a miniature cat’s tail, giving rise to its common name. Localised and easily overlooked, it is well adapted to open, shifting substrates with little competition.
Black Bog-rush
Schoenus nigricans
Black Bog-rush is a distinctive plant of base-rich fens, flushes and dune slacks. It forms dense tussocks of wiry stems topped with clusters of dark brown to black spikelets, giving it a characteristic appearance. Often dominant in suitable conditions, it is incredibly abundant on the Snook, where it forms dense drifts across damp depressions close to the car park.
Flat-sedge
Blysmus compressus
Flat-sedge is a low-growing plant of damp, calcareous grassland, fens and dune slacks. It forms small tufts of flattened stems bearing neat rows of brown spikelets, giving it a distinctive, orderly appearance.
A rare plant regionally, it is by no means scarce on Holy Island.
Long-bracted Sedge
Carex extensa
A characteristic plant of coastal salt marshes and maritime grassland, the flowering stems bear distinctive, leaf-like bracts that extend well beyond the spikelets, giving it a recognisable appearance. Tolerant of saline conditions, it is a typical species of the upper marsh and transitional coastal habitats.
Saltmarsh Rush
Juncus gerardii
Saltmarsh Rush is a characteristic species of coastal salt marshes and upper shore habitats. It forms dense tufts of stiff, grass-like stems, often dominating areas subject to regular salt spray and occasional inundation. Its compact clusters of small brown flowers are subtle but rather frequent once you get your eye in.
Sea Club-rush
Bolboschoenus maritimus
A robust plant of brackish wetlands, including salt marshes, estuaries and coastal lagoons. The tall, triangular stems of Sea Club-rush bear clusters of brown spikelets, often forming conspicuous stands in shallow water or wet mud. Spreading by rhizomes and tubers, it can be locally dominant in suitable areas.
