Ulex

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Ulex
Whin or Gorse.JPG
Gorse in full flower at Dalgarven Mill in Scotland.
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Tribe: Genisteae
Genus: Ulex
L.
Species

11–58; see text

Synonyms [1]

Genista-spartiumDuhamel (1755)

Ulex (commonly known as gorse, furze, or whin) is a genus of flowering plants in the family Fabaceae. The genus comprises about 20 species of thorny evergreen shrubs in the subfamily Faboideae of the pea family Fabaceae. The species are native to parts of western Europe and northwest Africa, with the majority of species in Iberia.

Contents

Gorse is closely related to the brooms, and like them, it has green stems, very small leaves and is adapted to dry growing conditions. However, it differs from the brooms in its extreme thorniness, the shoots being modified into branched thorns 1–4 centimetres (1⁄2–1+1⁄2 inches) long, which almost wholly replace the leaves as the plant's functioning photosynthetic organs. The leaves of young plants are trifoliate, but in mature plants, they are reduced to scales or small spines. [2] All the species have yellow flowers, generally showy, some with a very long flowering season.

Species

The greatest diversity of Ulex species is found in the Iberian Peninsula, and most species have narrow distribution ranges. The most widespread species is the common gorse ( Ulex europaeus ): it's the only species native to much of western Europe, where it grows in sunny sites and usually on dry, sandy soils. It is also the largest species, reaching 2–3 m (7–10 ft) in height; this compares with typically 20–40 cm (8–16 in) heights for the western gorse ( Ulex gallii ). This latter species is characteristic of highly exposed Atlantic coastal heathland and montane habitats. In the eastern part of Great Britain, the dwarf furze ( Ulex minor ) replaces the western gorse. Ulex minor grows to a height of approximately 30 cm (12 in), a habit characteristic of sandy lowland heathlands.

Fruiting at Mallaig, Scotland Fruiting Gorse - Flickr - Tatters .jpg
Fruiting at Mallaig, Scotland

Common gorse flowers a little in late autumn and through the winter, coming into flower most strongly in spring. Western gorse and dwarf furze flower in late summer (August–September in Ireland and Great Britain). Between the different species, some gorse is nearly always in flower, hence the old country saying: "When gorse is out of blossom, kissing's out of fashion". [3] Gorse flowers have a distinctive coconut-like scent, experienced very strongly by some individuals but only weakly by others. [4] [5]

Ulex europaeus Whin or Gorse on Fife Coastal Trail.jpg
Ulex europaeus

Species list

The genus comprises the following species: [6] [7] [8] [9]

The number of species is likely higher, as many subspecies are not closely related to one another or have large differences in ploidy. [10] [11]

Species names with uncertain taxonomic status

The status of the following species is unresolved: [8]

  • Ulex eriophorusGand.
  • Ulex spicatusGand.

Hybrids

The following hybrids have been described: [9]

Ecology

Gorse may grow as a fire-climax plant, well adapted to encourage and withstand fires, being highly flammable [12] and having seed pods that are, to a large extent, opened by fire: thus allowing rapid regeneration after fire. The burnt stumps will readily sprout new growth from the roots. Where fire is excluded, gorse soon tends to be shaded out by taller-growing trees, unless other factors, such as exposure, also apply. Typical fire recurrence periods in gorse-stands are 5–20 years.

Gorse thrives in poor growing areas and conditions, including drought; [13] it is sometimes found on very rocky soils, [14] where many species cannot thrive. Moreover, it is widely used for land reclamation (e.g. mine tailings), where its nitrogen-fixing capacity helps other plants establish better.

Gorse is a valuable plant for wildlife, providing dense, thorny cover that's ideal for protecting bird nests. In Britain, France and Ireland, it is particularly noted for supporting Dartford warblers (Sylvia undata) and European stonechats (Saxicola rubicola); the common name of the whinchat (Saxicola rubetra) attests to its close association with gorse. The flowers are sometimes eaten by the caterpillars of the double-striped pug moth (Gymnoscelis rufifasciata), whilst those of the case-bearer moth Coleophora albicosta feed exclusively on gorse. The dry wood of dead gorse stems provides food for the caterpillars of the concealer moth Batia lambdella .

Invasive species

Ulex landscape around Corral Bay in Southern Chile Ulex landscape.JPG
Ulex landscape around Corral Bay in Southern Chile

In many areas of North America (notably California and Oregon), southern South America, Australia, New Zealand, the Falkland Islands, [15] and Hawaii, the common gorse—originally introduced as an ornamental plant or hedge—has become an invasive species owing to its aggressive seed dispersal; it has proved very difficult to eradicate and detrimental to native habitats. Common gorse is also an invasive species in the montane grasslands of Horton Plains National Park in Sri Lanka. [16]

Controlled burning of gorse in Devon, England Controlling gorse on Dartmoor 752.jpg
Controlled burning of gorse in Devon, England

Management

Gorse readily becomes a dominant plant in suitable conditions. Where this is undesirable for agricultural or ecological reasons, control is required either to remove gorse completely, or to limit its extent. Gorse-stands are often managed by regular burning or flailing, allowing them to regrow from stumps or seed. Denser areas of gorse may be bulldozed.

A whin-stone at Dalgarven Mill, Scotland, used to crush whin for use as winter feed for cattle Whinstonedalgarven.JPG
A whin-stone at Dalgarven Mill, Scotland, used to crush whin for use as winter feed for cattle

Uses

Foods

Gorse flowers are edible and can be used in salads, teas and to make a non-grape-based fruit wine. [17]

As fodder, gorse is high in protein [18] and may be used as feed for livestock, particularly in winter, when other greenstuff is not available. Traditionally, it was used as fodder for horses and cattle, [19] being made palatable either by bruising (crushing) with hand-held mallets, grinding it to a moss-like consistency with hand- or water-driven mills, or being finely chopped and mixed with straw chaff. [20] Gorse is also eaten as forage by some livestock, such as feral ponies, which may eat little else in winter. Ponies may also eat the thinner stems of burnt gorse.

Fuel

Gorse-bushes are highly flammable; in many areas, bundles of gorse were used to fire traditional bread ovens. [21]

On the island of Guernsey, Channel Islands, many traditional farms had furze brakes. The prolific gorse and bracken would be cut, dried and stored to be used as fuel, with farmhouses having purpose-built furze ovens. [22] [23]

Wood

Gorse wood has been used to make small objects; being non-toxic, it is especially suited for cutlery. In spite of its durability, it is not used for construction because the plant is too small and its wood is unstable, being prone to warping. Gorse is useful for garden ornaments, because it is resistant to weather and rot.

Common gorse flowers Common Gorse (Ulex europaeus) flowers close up T2i IMG 101 0837 NR edit.JPG
Common gorse flowers

Alternative medicine

Gorse has been listed as one of the 38 plants that are used to prepare Bach flower remedies, [24] a kind of alternative medicine.

Gorse-based symbols

Dartmoor ponies sheltering behind furze Dartmoor ponies sheltering behind gorse.jpg
Dartmoor ponies sheltering behind furze

The furze is the badge of the Sinclair and MacLennan clans of Scotland. The flower, known as chorima in the Galician language, is the national flower of Galicia in northwest Spain.

The gorse is also the emblem of Brittany and is regaining popularity in Cornwall, particularly on St Piran's Day.

The flammability of gorse rendered it a symbol for things that were quick to catch fire and burn out; for example, Doyle, in his book Sir Nigel , has Sir John Chandos say: "They flare up like a furzebush in the flames, but if for a short space you may abide the heat of it, then there is a chance that it may be cooler ... If the Welsh be like the furze fire, then, pardieu! the Scotch are the peat, for they will smolder and you will never come to the end of them." [25]

In many parts of Britain, especially Devon and Cornwall, where it is particularly prevalent on the moors, the expression "kissing's out of fashion when the gorse is out of blossom" [26] is a traditional jest, as common gorse is thought to be always in bloom. Sprigs of gorse—or rather, furze, as it was usually known in the West Country—were a traditional gift between young lovers on May Day, when the blossom is at its peak.

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References

  1. ↑ Ulex L. Plants of the World Online . Retrieved 22 September 2023.
  2. ↑ AR Clapham, TG Tutin, EF Warburg, Flora of the British Isles, Cambridge, 1962, p. 331
  3. ↑ "When the gorse is out of bloom, kissing's out of fashion". Oxford Reference . Retrieved 26 December 2020.
  4. ↑ "Gorse". Plantlife International. Archived from the original on 18 July 2011. Retrieved 14 March 2011.
  5. ↑ Moore, Charles (28 September 2009). "Richard Mabey, a writer dropping down to see the natural world". The Telegraph. Retrieved 14 March 2011.
  6. ↑ "ILDIS LegumeWeb entry for Ulex". International Legume Database & Information Service. Cardiff School of Computer Science & Informatics. Retrieved 15 April 2014.
  7. ↑ USDA; ARS; National Genetic Resources Program. "GRIN species records of Ulex". Germplasm Resources Information Network—(GRIN) [Online Database]. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved 15 April 2014.
  8. 1 2 "The Plant List entry for Ulex". The Plant List . Royal Botanic Gardens, Kew and the Missouri Botanical Garden. 2013. Retrieved 15 April 2014.
  9. 1 2 "Plants of the World Online entry for Ulex". Plants of the World Online . Royal Botanic Gardens, Kew. 2022. Retrieved 27 October 2022.
  10. ↑ Ainouche, Abdelkader; Bayer, Randall J.; Cubas, Paloma; Misset, Marie-Thérèse (2003). "Phylogenetic relationships within tribe Genisteae (Papilionoideae) with special reference to genus Ulex". In Klitgaard, B.B.; Bruneau, A. (eds.). Advances in Legume Systematics part 10, Higher Level Systematics. Royal Botanic Gardens, Kew. pp. 239–252.
  11. ↑ Fonseca, J.P.; Pereira, A.; Robalo, J.I.; Neto, C.; Costa, J.C. (20 January 2021). "Ribosomal DNA revealed an extensive role of allopolyploidy in the radiation of Ulex L.". bioRxiv   10.1101/2021.01.20.427424 .
  12. ↑ Pausas; et al. (2011). "Fires enhance flammability in Ulex parviflorus" (PDF). New Phytologist. 193 (1): 18–23. doi: 10.1111/j.1469-8137.2011.03945.x . PMID   22039968.
  13. ↑ "Ulex europaeus Gorse, Common gorse PFAF Plant Database". pfaf.org.
  14. ↑ C. Michael Hogan (2008) "Catto Long Barrow field notes", The Modern Antiquarian
  15. ↑ "Falkland Islands". GB Non-Native Species Secretariat. Retrieved 2024-12-04.
  16. ↑ Lalith Gunasekera, Invasive Plants: A guide to the identification of the most invasive plants of Sri Lanka, Colombo 2009, pp. 88–89.
  17. ↑ Wright, John (14 March 2012). "How to make gorse wine". The Guardian. Retrieved 5 April 2024.
  18. ↑ Carrington, Damian (10 January 2022). "Protein from gorse bushes could feed millions of people, says expert". The Guardian. Retrieved 5 April 2024.
  19. ↑ "Gorse as horse fodder | Plant-Lore". www.plant-lore.com. Retrieved 5 April 2024.
  20. ↑ Rymer, Leslie (1979). "Ethnobotany and Native Distribution of Gorse (Ulex europaeus L.) in Britain". Environmental Conservation. 6 (3): 211–213. Bibcode:1979EnvCo...6..211R. doi:10.1017/S0376892900003064. ISSN   0376-8929. JSTOR   44516992. S2CID   86141271 . Retrieved 12 January 2022.
  21. ↑ "Experimental Archaeology Site at Tunstall". Suffolk County Council. Archived from the original on 2012-03-08. Retrieved 2010-06-30. We have tried different woods as fuel to see which is most efficient and our favourite is dead gorse, collected locally and a dominant species on the sandy soils in this area. Analysis of woods used in the Roman salt industry that took place on the estuary a mile away shows they were using the same fuel.
  22. ↑ "Out in the fields of gold". Guernsey press. 19 April 2012.
  23. ↑ "Les Prevosts farm". guernseygoasdoue. 2015-01-24.
  24. ↑ DS Vohra (1 June 2004). Bach Flower Remedies: A Comprehensive Study. B. Jain Publishers. p. 3. ISBN   978-81-7021-271-3 . Retrieved 2 September 2013.
  25. ↑ Doyle, Sir Arthur Conan (1906). Sir Nigel . London: Smith, Elder & Co.
  26. ↑ "Kissing's in fashion …". plant-lore.com. 31 December 2014.
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