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Yanal Bog
Yanal Bog () is a 1.6 hectare biological Site of Special Scientific Interest on the southern edge of the North Somerset Levels, just north of the village of Sandford, North Somerset. It was notified as an SSSI in 1988. Site description Yanal Bog is a calcicolous lowland mire. Underlying the site are gravels and clay alluvium. Above this sits a layer of peat. This results in a high water table, creating a distinct domed landscape feature. Biological interest The plant communities of the mire are nationally rare in Britain, and support two species, Black Bog-rush (''Schoenus nigricans'') and Blunt-flowered Rush ('' Juncus subnodulosus''), that have restricted distributions in south-west England, and a number of species that are localised in the North Somerset area. Surrounding the raised mire is a belt of grassland; although this is included within the SSSI, it is largely made up of common grass and herb species. In the community in the western part of the mire, Blunt-flowe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hectare
The hectare (; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100-metre sides (1 hm2), or 10,000 m2, and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is about and one hectare contains about . In 1795, when the metric system was introduced, the ''are'' was defined as 100 square metres, or one square decametre, and the hectare ("hecto-" + "are") was thus 100 ''ares'' or km2 (10,000 square metres). When the metric system was further rationalised in 1960, resulting in the International System of Units (), the ''are'' was not included as a recognised unit. The hectare, however, remains as a non-SI unit accepted for use with the SI and whose use is "expected to continue indefinitely". Though the dekare/decare daa (1,000 m2) and are (100 m2) are not officially "accepted for use", they are still used in some contexts. Description The hectare (), although not a unit of SI, i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Base-rich
In ecology, base-richness is the level of chemical bases in water or soil, such as calcium or magnesium ions. Many organisms prefer base-rich environments. Chemical bases are alkalis, hence base-rich environments are either neutral or alkaline. Because acid-rich environments have few bases, they are dominated by environmental acids (usually organic acids). However, the relationship between base-richness and acidity is not a rigid one – changes in the levels of acids (such as dissolved carbon dioxide) may significantly change acidity without affecting base-richness. Base-rich terrestrial environments are characteristic of areas where underlying rocks (below soil) are limestone. Seawater is also base-rich, so maritime and marine environments are themselves base-rich. Base-poor environments are characteristic of areas where underlying rocks (below soil) are sandstone or granite, or where the water is derived directly from rainfall (ombrotrophic). Examples of base-rich en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Succisa Pratensis
''Succisa pratensis'', also known as devil's-bit or devil's-bit scabious, is a flowering plant in the honeysuckle family Caprifoliaceae. It differs from other similar species in that it has four-lobed flowers, whereas small scabious and field scabious have five lobes and hence it has been placed in a separate genus in the same family. It also grows on damper ground. Name Species of scabious were used to treat scabies, and other afflictions of the skin including sores caused by the bubonic plague. The word scabies comes from the Latin word for "scratch" (scabere). The short black root was in folk tales bitten off by the devil, angry at the plant's ability to cure these ailments, in anger against the Virgin Mary, or as part of some 'devilish plot'. The Latin binomial nomenclature, specific epithet ''pratensis'' literally means "of the meadow". Description ''Succisa pratensis'' is a herbaceous perennial plant, perennial up to 1m tall, growing from a basal rosette of simple or d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Galium Uliginosum
''Galium uliginosum'' or fen bedstraw is a plant species of the genus ''Galium''. It is widespread across most of Europe as well as Morocco, Western Siberia, Turkey, Kazakhstan and Xinjiang. It is reportedly naturalized in New Zealand, Greenland and the Crozet Islands. ''Galium uliginosum'' is a component of purple moor grass and rush pastures – a type of Biodiversity Action Plan habitat in the UK. It occurs on poorly drained neutral and acidic soils of the lowlands and upland fringe. It is found in the South West of England, especially in Devon. ''Galium uliginosum'' is easily confused with marsh bedstraw, ''Galium palustre'', but is distinguished from this species by having bristly edges on its leaves, and not turning black when it dries out. The leaves are arranged in whorls of 6 to 10 around the stem, which is a characteristic feature of the bedstraw genus ''Galium ''Galium'' is a large genus of annual and perennial herbaceous plants in the family Rubiaceae, occurring i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dactylorhiza Praetermissa
''Dactylorhiza praetermissa'', the southern marsh orchid or leopard marsh orchid, is a commonly occurring species of European orchid. Description ''Dactylorhiza praetermissa'' grows to tall, with leaves generally unspotted. The flowers, appearing from May to July, are various shades of pink with variable markings. The basal lip of the flower is rounded. This species is able to form hybrids with other ''Dactylorhiza'' species, and crosses with ''Dactylorhiza fuchsii'' occur especially often. Distribution and habitat It is native to northern and central Europe (Britain, Denmark, Norway, Sweden, Germany, Netherlands, Belgium, France, Estonia and Latvia). It is also reportedly naturalized in Italy and in parts of Canada (Ontario and Newfoundland). This species is found close to water, in damp alkaline meadows, by ponds, lakes or reservoirs and in dune slacks. Ecology The flowers of this species are pollinated by insects including the cuckoo bee and skipper butterfly. ''Dactyl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triglochin Palustris
''Triglochin palustris'' or marsh arrowgrass is a species of flowering plant in the arrowgrass family Juncaginaceae. It is found in damp grassland usually on calcareous soils, fens and meadows. The species epithet ''palustris'' is Latin for "of the marsh" and indicates its common habitat.Archibald William Smith It has a circumboreal distribution, occurring throughout northern parts of the Northern Hemisphere. It can be found locally in the British Isles especially the north. Description It is a slender perennial herb 15 to 40 cm tall. It has no stolons, and emits a pleasant aromatic smell when bruised. The leaves are linear, 10 to 20 cm long, rounded on the lower side, deeply grooved on the other. It has many 3 petaled flowers arranged in a long spike, with purple edged perianth segments, 2 mm long. It flowers from June until August. The fruits are club shaped, 10 mm long and 2 mm wide. These plants can adapt to animals attacking it by closing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genista Tinctoria
''Genista tinctoria'', the dyer's greenweed or dyer's broom, is a species of flowering plant in the family Fabaceae. Its other common names include dyer's whin, waxen woad and waxen wood. The Latin specific epithet ''tinctoria'' means "used as a dye". Description It is a variable deciduous shrub growing to tall by wide, the stems woody, slightly hairy, and branched. The alternate, nearly sessile leaves are glabrous and lanceolate. Golden yellow pea-like flowers are borne in erect narrow racemes from spring to early summer. The fruit is a long, shiny pod shaped like a green bean pod. Distribution and habitat This species is native to meadows and pastures in Europe and Turkey. Properties and uses Numerous cultivars have been selected for garden use, of which 'Royal Gold' has gained the Royal Horticultural Society's Award of Garden Merit. The plant, as its Latin and common names suggest, has been used from ancient times for producing a yellow dye, which combined with woad als ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valeriana Dioica
''Valeriana dioica'', the marsh valerian, is a species of flowering plant in the genus '' Valeriana'', native to Europe and Anatolia. It is typically found in calcareous fens. It is a dioecious Dioecy (; ; adj. dioecious , ) is a characteristic of a species, meaning that it has distinct individual organisms (unisexual) that produce male or female gametes, either directly (in animals) or indirectly (in seed plants). Dioecious reproductio ... species, with male and female flowers on separate individuals, and it is pollinated by small flies. Varieties The following varieties are currently accepted: *''Valeriana dioica'' var. ''dioica'' *''Valeriana dioica'' var. ''sylvatica'' S.Watson – northern North America References dioica Dioecious plants Flora of Europe Flora of Turkey Taxa named by Carl Linnaeus Plants described in 1753 {{Dipsacales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cirsium Dissectum
''Cirsium dissectum'', also known as meadow thistle, is an erect perennial herb. It is found in England, Wales, Ireland, France, the Netherlands, Germany, Italy, Spain, Hungary, Norway, etc. It is found in fens and less acidic peat bogs i.e. it prefers damp boggy areas. Description ''Cirsium dissectum'' grows 15 to 50 cm tall. It resembles a more slender version of ''Cirsium heterophyllum'' in having a grooved cottony stem and lanceolate shaped leaves, that have prickles and not spines. However the leaves are narrower (under 3 cm), less hairy underneath, and hairy on top. The flower heads are 2 to 3 cm long, the florets being dark red/purple, flowering from June until August. The plant has runners. Similar species ''Cirsium tuberosum'' or tuberous thistle, has tuberous roots rather than runners, and the leaves are twice pinnated. It is found in Calcareous grasslands but very rare. It has been recorded in Britain in the counties of Cambridg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serratula Tinctoria
''Serratula tinctoria'', commonly known as dyer's plumeless saw-wort or saw-wort, is a species of flowering plant in the family Asteraceae. It is a native of Europe with a thistle-like flower head. It grows in moist soil, full sun to part shade, and is up to one metre tall. This is an introduced plant in a small area of the northeastern United States Uses The leaves of ''Serratula tinctoria'' are the source of a yellow dye. As a herbal preparation, the plant was thought to mend ruptures and wounds."Wild Flowers of Britain and Ireland" by Rae Spencer-Jones and Sarah Cuttle, 2005, p. 202, File:Asteraceae - Serratula tinctoria-1.JPG File:Asteraceae - Serratula tinctoria.JPG File:Serratula tinctoria MHNT.BOT.2012.10.41.jpg References External links * Many pictures Cynareae Plant dyes Plants described in 1753 {{Cynareae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carex Pulicaris
''Carex pulicaris'', the flea sedge, is a species of sedge in the genus ''Carex'' native to Europe. Description ''Carex pulicaris'' is a small sedge, with stiff stems tall. The leaves are long and less than wide. The inflorescence comprises a single spike, with 3–10 female flowers towards the base, and male flowers towards the tip. As the utricles mature, they bend away from the spike axis and become sensitive to touch; the way the seeds appear to jump from the stem gives rise to the plant's vernacular name. Before the utricles have become deflexed, ''C. pulicaris'' closely resembles '' C. rupestris'', with which it often grows. It may also be confused with '' C. pauciflora'', which usually bears only 2–3 fruit per stem. Distribution and ecology ''Carex pulicaris'' is found across much of Europe, from Spain to Estonia and north to Iceland and Fennoscandia, but excluding the Mediterranean region. It grows in a variety of wet habitats, including bogs, fens an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Equisetum Palustre
''Equisetum palustre'', the marsh horsetail, is a plant species belonging to the division of horsetails ( Equisetopsida). It is widespread in cooler regions of North America and Eurasia. Description ''Equisetum palustre'' is a perennial cryptophyte, growing between 10 and 50 centimeters (4" to 20"), in rare cases up to one meter (3'). Its fertile shoots, which carry ears, are evergreen and shaped like the sterile shoots. The rough, furrowed stem is one to three mm in diameter with usually eight to ten ribs, in rare cases, four to 12. It contains whorled branches. The tight-fitting sheaths end in four to 12 teeth. The lower sheaths are dark brown and much shorter than the sheaths of the main shoot. The central and vallecular canals are about the same size, but the carinal channels are much smaller. The central channels measure about one sixth of the diameter of the stem. The spores are spread by the wind (anemochory) and have four long ribbon-like structures attached to them ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
