Ammophila arenaria

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Ammophila arenaria
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Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Genus: Ammophila
Species:
A. arenaria
Binomial name
Ammophila arenaria
(L.) Link
Synonyms
  • Arundo arenaria, (Linnaeus) [1]
  • Ammannia coccinea purpurea, (Lam.) Koehne [1]
  • Ammannia teres, (Raf.) [1]
  • Calamagrostis arenaria, (L.) Roth [1]
  • Ammophila australis is a synonym of Ammophila arenaria subspecies australis(Mabille) M.Laínz

Ammophila arenaria is a species of grass in the family Poaceae. It is known by the common names marram grass and European beachgrass. [2] [3] It is one of two species of the genus Ammophila . It is native to the coastlines of Europe and North Africa where it grows in the sands of beach dunes. It is a perennial grass forming stiff, hardy clumps of erect stems up to 1.2 metres (3.9 ft) in height. It grows from a network of thick rhizomes which give it a sturdy anchor in its sand substrate and allow it to spread upward as sand accumulates. These rhizomes can grow laterally by 2 metres (6 ft 7 in) in six months. One clump can produce 100 new shoots annually. [4]

Contents

The rhizomes tolerate submersion in sea water and can break off and float in the currents to establish the grass at new sites. [5] The leaves are up to 1 metre (3 ft 3 in) long and sharply pointed. The cylindrical inflorescence is up to 30 centimetres (12 in) long. It is adapted to habitat made up of shifting, accreting sand layers, as well as that composed of stabilised dunes. [5]

Life cycle/phenology

A single leaf of marram grass, showing the rolled leaf which reduces water loss European Marram Grass (Ammophila arenaria) rolled leaf close-up.jpg
A single leaf of marram grass, showing the rolled leaf which reduces water loss
100x magnified cross section of a curled leaf Ammophila arenaria leaf cross section.jpg
100x magnified cross section of a curled leaf

Ammophila arenaria is a perennial plant, which means it can live for many years. It mainly grows in spring when leaf production exceeds leaf senescence. However, the conditions in autumn cause the plant to nearly stop growth while its leaves become aged. [6] In winter, because of the cold temperatures, growth is very slow but does not stop. [7] As a xerophytic adaptation, its leaves curl during drought (see pictures). The relatively high humidity within the curled leaf prevents a rapid water loss. This is facilitated by the bulliform cells located at the base of the V-shaped notch which swells and makes the leaf uncurl when filled with water. [8]

This plant is highly adaptive in sand, and can withstand burial for more than one year. Unlike other plants which will die in sand, marram grass will elongate its leaves when it is buried by sand. [9] [10]

Its inflorescences are initiated in autumn of the second year after germination and mature in May or June, and its flowers are always produced from May to August. [7] But this is changed to May in Europe because of the different climates. [11] The fruit is always mature in September, and the seeds germinate in the next spring. Though the adult plant is strong, the seeds have low viability, and the seedlings also have low survival rates as well because of desiccation, burial, and erosion. [12] The main organ for its reproduction is rhizomes, which are dispersed along the shore by wind and water. [13]

Geographic distribution and habitat

Sand dunes densely covered by marram grass at Oxwich Bay, Wales European Marram Grass (Ammophila arenaria) growing on sand dunes in Wales 06.jpg
Sand dunes densely covered by marram grass at Oxwich Bay, Wales

Natural global range

Ammophila arenaria is a European and North African native plant. It occurs in Australia, Canada, Chile, Falkland Islands (Malvinas) (sub-Antarctic), New Zealand, South Africa and United States (USA). [14]

New Zealand range

Usually occurs on sand dunes, sometimes in inland sites with low fertility. [15] It occurs in the Wellington region and extends from to 55 to 32 degrees south latitude. In the Northern Hemisphere, it grows between 30 and 63 degrees north latitude. [16] Occurs in Chatham Islands, Otago Region, Doughboy Bay and Mason Bay.

Habitat preferences

Marram grass grows on coastal sand dunes all over the world. It prefers growing on the active sand area and the windward side of the foredune. It prefers well-drained soils with different kinds of mineral compositions and low in organic matter. The optimal soil conditions for marram grass is a soil pH from 4.5 to 9.0, soil temperatures from 10–40 °C (50–104 °F), [17] and salt concentrations of no more than 1.0-1.5%. [18] Marram grass can also be found on alkaline soils with a high pH of around 9.1 and also acidic soils with pH less than 4.5. Adult plants can tolerate a large range of chemical issues. Marram grass has an ability to adapt dry sand well. Its leaves become rolled and tight when moisture levels are low. [16]

Invasiveness: Pacific coast of North America

A. arenaria is one of the most problematic noxious weeds of coastal California. This sand-adapted grass was introduced to the beaches of western North America during the mid-19th century to provide stabilization to shifting sand dunes. It grew readily and it can now be found from California to British Columbia. The grass is invasive in the local ecosystems, forming dense monotypic stands that crowd out native vegetation, reduce species diversity of native arthropods, and cover vital open stretches of sand used for nesting by the threatened western snowy plover ( Charadrius nivosus ). [5] The plant's spread has changed the topography of some California beach ecosystems, especially in sand dunes. The presence of this grass was a major cause of the destruction of native dune habitat in Oregon and Washington during the 20th century, [19] where it was planted precisely for its dune-stabilizing effect. [20]

Several methods have been employed in attempts to eradicate the grass in California, including manual pulling, burning, mechanical removal followed by salt water irrigation, and glyphosate application. [19] Studies to find the best methods are ongoing.

The California Conservation Corps also has taken a major effort in the removal of the invasive Beachgrass.

Invasiveness: New Zealand and Australia

Not only is it invasive in California, it is also a highly invasive weed in coastal areas of New Zealand and Western Australia, where it was introduced for the same purpose in California, to stabilise dunes; outcompeting native spinifex species. However, in New Zealand the larvae of the endemic moth species Agrotis innominata has adapted to using A. arenaria as one of its main host species. [21] It has been suggested that prior to the removal of this invasive grass from the coasts of New Zealand that surveys be undertaken to establish whether this endemic moth is present in order to assist with the conservation of that species. [21]

Predators, parasites, and diseases

Marram grass does not carry any major disease in New Zealand, as only 3 pathogenic fungi (Claviceps purpurea, Uredo sp. and Colletotrichum graminicola) are present on the island. These three fungi result in ergot, rust and leaf spot respectively and are found both on flower-heads and leaves. However, in European countries, there are a lot of pests known to feed on marram grass. Those pests killed 30%-40% of the tillers, and also damaged other species. The fungi, always found in soil, may decrease the vigour on the stabilized sand. [22]

Uses

The roots of marram grass are edible, although rather thin and fibrous. The flowering stems and leaves are used for thatching, basketry and making brooms. Fiber from the stem is used for making paper, and the rhizomes are used for making rope and mats. [23]

See also

Related Research Articles

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Ammophila is a genus of flowering plants consisting of two or three very similar species of grasses. The common names for these grasses include marram grass, bent grass, and beachgrass. These grasses are found almost exclusively on the first line of coastal sand dunes. Their extensive systems of creeping underground stems or rhizomes allow them to thrive under conditions of shifting sands and high winds, and to help stabilize and prevent coastal erosion. Ammophila species are native to the coasts of the North Atlantic Ocean where they are usually the dominant species on sand dunes. Their native range includes few inland regions, with the Great Lakes of North America being the main exception. The genus name Ammophila originates from the Greek words ἄμμος (ámmos), meaning "sand", and φίλος (philos), meaning "friend".

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<i>Ficinia spiralis</i> Species of grass-like plant

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<i>Arundo donax</i> Species of plant

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<i>Uniola paniculata</i> Species of flowering plant

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Sand dune ecology describes the biological and physico-chemical interactions that are a characteristic of sand dunes.

<i>Ammophila breviligulata</i> Species of flowering plant in the grass family Poaceae

Ammophila breviligulata is a species of grass native to eastern North America, where it grows on sand dunes along the Atlantic Ocean and Great Lakes coasts. Beachgrass thrives under conditions of shifting sand, sand burial, and high winds; it is a dune-building grass that builds the first line of sand dunes along the coast. Beachgrass is less vigorous in stabilized sand, and is only infrequently found further inland than the coastal foredunes. On the Atlantic coastline of North America, Ammophila breviligulata has been observed as far south as North Carolina, and is often planted in dune restoration projects. Ammophila breviligulata was introduced to the Pacific coast of North America in the 1930s. It is proving to be invasive, and is increasingly important to coastal ecology and development in Oregon, Washington, and British Columbia.

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<span class="mw-page-title-main">Lanphere Dunes</span>

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<span class="mw-page-title-main">Sand dune stabilization</span> Coastal management practice

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<i>Agrotis innominata</i> Species of moth

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<i>Phacelia argentea</i> Species of plant

Phacelia argentea is a rare species of phacelia known by the common names sand dune phacelia and silvery phacelia. It is native to the coastline of southwestern Oregon and far northwestern California, where it was counted at a total of 33 sites in 1995. It is the only phacelia species endemic to coastal sand dune habitat, an ecosystem which is altered and declining in the area.

A foredune is a dune ridge that runs parallel to the shore of an ocean, lake, bay, or estuary. Foredunes consist of sand deposited by wind on a vegetated part of the shore. Foredunes can be classified generally as incipient or established.

<i>Austroderia richardii</i> Species of grass

Austroderia richardii, syn. Cortaderia richardii, is a species of flowering plant in the family Poaceae. It is an evergreen perennial grass. The genus Austroderia is often confused with "pampas grass", which usually refers to Cortaderia selloana. "Early pampas-grass" is a more specific name. The name "tussock grass" may also be found. The Maori name is "toetoe". It is one of five species commonly called toetoe in the genus Austroderia that are endemic to New Zealand. It occurs in the South Island and possibly also in the North Island. It is also an introduced species in Tasmania, Australia.

<i>Psathyrella ammophila</i> Species of fungus

Psathyrella ammophila is a species of fungus in the family Psathyrellaceae and is found throughout Europe. Commonly known as the dune brittlestem, this agaric primarily grows on sand dunes near marram grass, feeding saprotrophically on the decaying roots. The season of growth is generally May to November.

<i>Leymus mollis</i> Species of grass

Leymus mollis is a species of grass known by the common names American dune grass, American dune wild-rye, sea lyme-grass, strand-wheat, and strand grass. Its Japanese name is hamaninniku. It is native to Asia, where it occurs in Japan, China, Korea, and Russia, and northern parts of North America, where it occurs across Canada and the northern United States, as well as Greenland. It can also be found in Iceland.

<i>Hilaria rigida</i> Species of grass

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<span class="mw-page-title-main">Ma-le'l Dunes</span>

The Ma-le’l Dunes Cooperative Management Area (CMA) is located south of Lanphere Dunes at the upper end of the North Spit of Humboldt Bay, being approximately one mile north of the unincorporated town of Manila and 3.5 miles west of the City of Arcata, in Humboldt County, California. It consists of approximately 444 acres of public land. Ma-le’l dunes are divided into northern and southern sections. The northern portion is part of Humboldt Bay National Wildlife Refuge and is administered by the U.S. Fish and Wildlife Service (FWS). The southern portion of Ma-le’l is managed by the Bureau of Land Management (BLM) and provides access to the coastal dune environment for dog-walking and equestrian use on designated trails.

References

  1. 1 2 3 4 "Ammophila arenaria". Global Invasive Species Database (GISD).
  2. ↑ "Ammophila arenaria". California Invasive Plant Council. Retrieved 15 March 2023.
  3. ↑ David Chapman (2008). Exploring the Cornish Coast. Penzance: Alison Hodge. p. 52. ISBN   9780906720561.
  4. ↑ Apteker, Rachel. "Invasive Plants of California's Wildland: Ammophila arenaria". California Invasive Plants Council. Retrieved 2008-09-18.
  5. 1 2 3 "UC Cooperative Extension Species Profile: Ammophila arenaria". University of California. Retrieved 2008-09-18.
  6. ↑ Encyclopedia of Life, 2015, Ammophila arenaria.
  7. 1 2 Huiskes, A. H. L. (1979). Ammophila arenaria (L.) Link (Psamma arenaria (L.) Roem. et Schult.; Calamgrostis arenaria (L.) Roth). The Journal of Ecology, 363-382.
  8. ↑ Norris, Ryan. "Leaves and Leaf Anatomy". Biology Microscopy. The Ohio State University at Lima. Retrieved 13 May 2021.
  9. ↑ Maun, M. A.; Lapierre, J. (1984). "The Effects of Burial by Sand on Ammophila Breviligulata". Journal of Ecology. 72 (3): 827–839. doi:10.2307/2259534. ISSN   0022-0477. JSTOR   2259534.
  10. ↑ Ranwell, D. (1960). "Newborough Warren, Anglesey: II. Plant associes and succession cycles of the sand dune and dune slack vegetation". The Journal of Ecology. 48 (1): 117–141. doi:10.2307/2257311. JSTOR   2257311.
  11. ↑ Russo, M., Pickart, A., Morse, L., & Young, R. (1988). ELEMENT STEWARDSHIP ABSTRACT for Ammophila arenaria.
  12. ↑ content
  13. ↑ Wallén, B. (1980). Changes in structure and function of Ammophila during primary succession. Oikos, 227-238
  14. ↑ "Ammophila arenaria". Global Invasive Species Database. Retrieved 4 May 2015.
  15. ↑ "Ammophila arenaria". New Zealand Plant Conservation Network. Retrieved 4 May 2015.
  16. 1 2 Gadgil, Ruth L. (2006). Marram Grass — Friend or Foe? A Review of the Use of Ammophila arenaria on New Zealand Sand Dunes. Coastal Dune Vegetation Network Technical Bulletin. Vol. 5. Rotorua: New Zealand Forest Research Institute Limited. 32 pp.
  17. ↑ Ranwell, D. (1959). Newborough Warren, Anglesey. I. The dune system and dune slack habitat. J. Ecology. 47(3), pp.571-601
  18. ↑ Pickart, Andrea J (1997). Control of European Beachgrass (Ammophila arenaria) on the West Coast of the United States. . The Nature Conservancy Lanphere-Christensen Dunes Preserve Arcata. p. CA 95521.
  19. 1 2 Pickart, Andrea J. (1997). "Control of European Beachgrass (Ammophila arenaria) on the West Coast of the United States" (PDF). 1997 Symposium of the California Exotic Pest Plant Council. Retrieved 2008-09-20.
  20. ↑ "Exploring the Oregon Dunes . TV | OPB". www.opb.org. Archived from the original on 2017-04-10.
  21. 1 2 B. H. Patrick; K. J. Green (January 1991). "Notes On Agrotis innominata Hudson (Lepidoptera: Noctuidae)". New Zealand Entomologist. 14 (1): 32–36. doi:10.1080/00779962.1991.9722610. ISSN   0077-9962. Wikidata   Q105740814.
  22. ↑ Gadgil, Ruth L. (2002). "Marram gass (Ammophila arenaria) and coastal sand stability in New Zealand" (PDF). New Zealand Journal of Forestry Science. 32 (2): 165–180.
  23. ↑ Plant For A Future. (n.d.). Ammophila arenaria - (L.)Link. Retrieved from http://www.pfaf.org/user/Plant.aspx?LatinName=Ammophila+arenaria
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