Sporobolus pumilus

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Saltmeadow cordgrass
Spartina patens BB-1913.png
1913 illustration [1]
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Genus: Sporobolus
Species:
S. pumilus
Binomial name
Sporobolus pumilus
(Roth) P.M.Peterson & Saarela
Synonyms
List
  • Spartina pumilaRoth
  • Dactylis patensAiton
  • Limnetis juncea(Michx.) Rich.
  • Limnetis juncea var. monogynaCurtis
  • Spartina americanaRoth ex Trin.
  • Spartina juncea(Michx.) Willd.
  • Spartina juncea subvar. americanaSt.-Yves
  • Spartina juncea var. patens(Aiton) St.-Yves
  • Spartina patens(Aiton) Muhl
  • Spartina patens var. juncea(Michx.) Hitchc.
  • Spartina patens var. monogyna(Curtis) Fernald
  • Spartina platensisMez ex St.-Yves
  • Trachynotia junceaMichx.
  • Trachynotia patens(Aiton) Poir.

Sporobolus pumilus, the saltmeadow cordgrass, [2] also known as salt hay, is a species of cordgrass native to the Atlantic coast of the Americas, from Newfoundland south along the eastern United States to the Caribbean and north-eastern Mexico. It was reclassified after a taxonomic revision in 2014, [3] but the older name, Spartina patens, may still be found in use. It can be found in marshlands in other areas of the world as an introduced species and often a harmful noxious weed or invasive species.

It is a hay-like grass found in the upper areas of brackish coastal salt marshes. It is a slender and wiry plant that grows in thick mats 30–60 cm high, green in spring and summer, and turns light brown in late fall and winter. The stems are wispy and hollow, and the leaves roll inward and appear round. Because its stems are weak, the wind and water action can bend the grass, creating the appearance of a field of tufts and cowlicks. Like its relative smooth cordgrass, saltmeadow cordgrass produces flowers and seeds on only one side of the stalk. Flowers are a deep purple from June to October and turn brown in the winter months.

Saltmeadow cordgrass is found in high marsh zones where it is covered at times by high tides. Specialized cells are able to exclude salt from entering the roots, preventing the loss of fresh water. This grass is, however, less tolerant of saltwater than some other marsh grasses. It can also grow on beaches and can quickly recolonize an overwash zone [4]

A healthy salt marsh depends on the presence of plants such as salt hay grass and smooth cordgrass. These grasses provide rich habitat for crustaceans, mollusks, and birds, and serve as a major source of organic nutrients for the entire estuary. Mats of salt hay grass are inhabited by many small animals and are an important food source for ducks and seaside sparrows.

Newburyport Meadows, c. 1872-1878, by Martin Johnson Heade Martin Johnson Heade - Newburyport Meadows ATC.jpg
Newburyport Meadows , c. 1872–1878, by Martin Johnson Heade
Sporobolus pumilus in a high marsh area Spartina patens-saltmeadow cordgrass.jpg
Sporobolus pumilus in a high marsh area

Saltmeadow cordgrass marshes serve as pollution filters and as buffers against flooding and shoreline erosion. During the colonial era, towns scattered from Narragansett Bay to the Gulf of Maine were often settled based on their proximity to salt marshes due to the importance of saltmeadow cordgrass for fodder. It was harvested for bedding and fodder for farm animals and for garden mulch. Before hay was baled and stored under cover, it was used to top the hay stacks in the fields.

Many of the salt marshes in Rhode Island have been severely affected by filling, development, and road construction. These alterations restrict tidal flow, often having a severe ecological impact on the marsh. Because saltmeadow cordgrass requires a salty, wet habitat, restricted tidal flow often dries out the marsh and encourages the growth of invasive freshwater plants. Saltmeadow and smooth cordgrasses are often out-competed for space by common reed in areas where human activity has disturbed or altered the marsh. Common reed is not as productive or beneficial to a salt marsh as cordgrass.

While this species is a key member of the salt marsh flora in its native habitat, it is known as a harmful invasive species in other parts of the world. It is a notorious pest in the San Francisco Bay Area, where it out-competes native plants such as soft bird's beak and alters the habitat of rare animals such as Ridgway's rail. [5] This cordgrass was introduced to the estuaries of Oregon with shipments of oysters and has been dominating and crowding out native vegetation there. [6] It has appeared in marshes on the Iberian Peninsula, where it threatens native plant biodiversity. [7]

Related Research Articles

<span class="mw-page-title-main">Salt marsh</span> Coastal ecosystem between land and open saltwater that is regularly flooded

A salt marsh, saltmarsh or salting, also known as a coastal salt marsh or a tidal marsh, is a coastal ecosystem in the upper coastal intertidal zone between land and open saltwater or brackish water that is regularly flooded by the tides. It is dominated by dense stands of salt-tolerant plants such as herbs, grasses, or low shrubs. These plants are terrestrial in origin and are essential to the stability of the salt marsh in trapping and binding sediments. Salt marshes play a large role in the aquatic food web and the delivery of nutrients to coastal waters. They also support terrestrial animals and provide coastal protection.

<span class="mw-page-title-main">Tantramar Marshes</span>

The Tantramar Marshes, also known as the Tintamarre National Wildlife Area, is a tidal saltmarsh around the Bay of Fundy on the Isthmus of Chignecto. The area borders between Route 940, Route 16 and Route 2 near Sackville, New Brunswick. The government of Canada proposed the boundaries of the Tantramar Marshes in 1966 and was declared a National Wildlife Area in 1978.

<i>Spartina</i> Genus of flowering plant in the grass family Poaceae

Spartina is a genus of plants in the grass family, frequently found in coastal salt marshes. Species in this genus are commonly known as cordgrass or cord-grass, and are native to the coasts of the Atlantic Ocean in western and southern Europe, north-western and southern Africa, the Americas and the islands of the southern Atlantic Ocean; one or two species also occur on the western coast of North America and in freshwater habitats inland in the Americas. The highest species diversity is on the east coasts of North and South America, particularly Florida. They form large, often dense colonies, particularly on coastal salt marshes, and grow quickly. The species vary in size from 0.3–2 m tall. Many of the species will produce hybrids if they come into contact.

<i>Sporobolus alterniflorus</i> Species of aquatic plant

Sporobolus alterniflorus, or synonymously known as Spartina alterniflora, the smooth cordgrass, saltmarsh cordgrass, or salt-water cordgrass, is a perennial deciduous grass which is found in intertidal wetlands, especially estuarine salt marshes. It has been reclassified as Sporobolus alterniflorus after a taxonomic revision in 2014, but it is still common to see Spartina alterniflora and in 2019 an interdisciplinary team of experts coauthored a report published in the journal Ecology supporting Spartina as a genus. It grows 1–1.5 m tall and has smooth, hollow stems that bear leaves up to 20–60 cm long and 1.5 cm wide at their base, which are sharply tapered and bend down at their tips. Like its relative saltmeadow cordgrass S. patens, it produces flowers and seeds on only one side of the stalk. The flowers are a yellowish-green, turning brown by the winter. It has rhizoidal roots, which, when broken off, can result in vegetative asexual growth. The roots are an important food resource for snow geese. It can grow in low marsh as well as high marsh, but it is usually restricted to low marsh because it is outcompeted by salt meadow cordgrass in the high marsh. It grows in a wide range of salinities, from about 5 psu to marine, and has been described as the "single most important marsh plant species in the estuary" of Chesapeake Bay. It is described as intolerant of shade.

<i>Sporobolus anglicus</i> Species of grass in the family Poaceae

Sporobolus anglicus is a species of cordgrass that originated in southern England in about 1870 and is a neonative species in Britain. It was reclassified as Sporobolus anglicus after a taxonomic revision in 2014, but Spartina anglica is still in common usage. It is an allotetraploid species derived from the hybrid Sporobolus × townsendii, which arose when the European native cordgrass Sporobolus maritimus hybridised with the introduced American Sporobolus alterniflorus.

<i>Sporobolus maritimus</i> Species of grass

Sporobolus maritimus, or synonymously as Spartina maritima, the small cordgrass, is a species of cordgrass native to the coasts of western and southern Europe and western Africa, from the Netherlands west across southern England to southern Ireland, and south along the Atlantic coast to Morocco and also on the Mediterranean Sea coasts. There is also a disjunct population on the Atlantic coasts of Namibia and South Africa.

California's coastal salt marsh is a wetland plant community that occurs sporadically along the Pacific Coast from Humboldt Bay to San Diego. This salt marsh type is found in bays, harbors, inlets, and other protected areas subject to tidal flooding.

<span class="mw-page-title-main">Brackish marsh</span> Marsh with brackish level of salinity

Brackish marshes develop from salt marshes where a significant freshwater influx dilutes the seawater to brackish levels of salinity. This commonly happens upstream from salt marshes by estuaries of coastal rivers or near the mouths of coastal rivers with heavy freshwater discharges in the conditions of low tidal ranges.

<i>Sporobolus michauxianus</i> Species of grass

Sporobolus michauxianus is a species of cordgrass known as prairie cordgrass, freshwater cordgrass, tall marshgrass, and sloughgrass. It is native to much of North America, including central and eastern Canada and most of the contiguous United States except for the southwestern and southeastern regions. Its distribution extends into Mexico. It is also present on other continents as an introduced species.

<span class="mw-page-title-main">William T. Davis Wildlife Refuge</span>

The William T. Davis Wildlife Refuge (WTDWR) is an 814-acre (3.29 km2) wildlife refuge straddling the New Springville and Travis sections of Staten Island. The park was named in honor of Staten Island native William T. Davis, a renowned naturalist and entomologist who along with the Audubon Society started the refuge with an original acquisition of 52 acres (210,000 m2). Additional acreage was acquired in increments and the park is today 814 acres (3.29 km2). Beginning in 2010, the adjacent 223-acre (0.90 km2) North Park section of Freshkills Park has undergone preparation to serve as an expansion of the wildlife refuge.

<span class="mw-page-title-main">Salt pannes and pools</span> Water retaining depressions located within salt and brackish marshes

Salt pannes and pools are water retaining depressions located within salt and brackish marshes. Pools tend to retain water during the summer months between high tides, whereas pannes generally do not. Salt pannes generally start when a mat of organic debris is deposited upon existing vegetation, killing it. This creates a slight depression in the surrounding vegetation which retains water for varying periods of time. Upon successive cycles of inundation and evaporation the panne develops an increased salinity greater than that of the larger body of water. This increased salinity dictates the type of flora and fauna able to grow within the panne. Salt pools are also secondary formations, though the exact mechanism(s) of formation are not well understood; some have predicted they will increase in size and abundance in the future due to rising sea levels.

<i>Sporobolus montevidensis</i> Species of grass

Sporobolus montevidensis is a species of grass known by the common name denseflower cordgrass. Although reclassified after a taxonomic revision in 2014, it may still be referred to as Spartina densiflora by some users. It is native to the coastline of southern South America, where it is a resident of salt marshes. It is also known on the west coast of the North America and parts of the Mediterranean coast as an introduced species and in some areas a noxious weed. In California it is a troublesome invasive species of marshes in San Francisco Bay and in Humboldt Bay, where it was introduced during the 19th century from Chile in ballast.

<i>Sporobolus foliosus</i> Species of grass

Sporobolus foliosus is a species of grass known by the common name California cordgrass. It was reclassified from Spartina foliosa after a taxonomic revision in 2014. It is native to the salt marshes and mudflats of coastal California and Baja California, especially San Francisco Bay. It is a perennial grass growing from short rhizomes. It produces single stems or clumps of thick, fleshy stems that grow up to 1.5 meters tall. They are green or purple-tinged. The long, narrow leaves are flat or rolled inward. The inflorescence is a narrow, dense, spike-like stick of branches appressed together, the unit reaching up to 25 centimeters long. The lower spikelets are sometimes enclosed in the basal sheaths of upper leaves.

<i>Juncus roemerianus</i> Species of flowering plant

Juncus roemerianus is a species of flowering plant in the rush family known by the common names black rush, needlerush, and black needlerush. It is native to North America, where its main distribution lies along the coastline of the southeastern United States, including the Gulf Coast. It occurs from New Jersey to Texas, with outlying populations in Connecticut, New York, Mexico, and certain Caribbean islands.

<i>Sporobolus cynosuroides</i> Species of grass

Sporobolus cynosuroides is a species of grass known by the common names big cordgrass and salt reedgrass. It is native to the East Coast and Gulf Coast of the United States, where it grows in coastal habitat such as marshes, lagoons, and bays.

<i>Sporobolus spartinae</i> Species of plant

Sporobolus spartinae is a species of grass known by the common names gulf cordgrass and sacahuista. It is native to the Americas, where it occurs from the Gulf Coast of the United States south to Argentina.

Paten is a plate used in Christian services or rites.

The Kendall-Frost Mission Bay Marsh Reserve is a 20-acre University of California Natural Reserve System reserve on the northern shore of Mission Bay in San Diego County, California. Administered by UC San Diego, the site is owned by the University of California and managed for teaching and research.

Nonnative grasses that are invasive in Brazil include Arundo donax, Rottboellia cochinchinensis, Cortaderia selloana, Nassella neesiana, Spartina densiflora, and Spartina alterniflora. These species have been identified and are being managed by the Ministry of Environment and Forest.

References

  1. Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 223.
  2. USDA, NRCS (n.d.). "Spartina patens". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 24 November 2015.
  3. Peterson, PM , et al (2014) A molecular phylogeny and new subgeneric classification of Sporobolus (Poaceae: Chloridoideae: Sporobolinae), Taxon 63: 1212-1243.
  4. Lonard, Robert I.; Judd, Frank W.; Stalter, Richard (2010-09-01). "The Biological Flora of Coastal Dunes and Wetlands: Spartina patens (W. Aiton) G.H. Muhlenberg". Journal of Coastal Research. 265: 935–946. doi:10.2112/JCOASTRES-D-09-00154.1. ISSN   0749-0208. S2CID   129228658.
  5. Spartina.org Fact Sheet
  6. Oregon Noxious Weeds
  7. D. G. SanLeón, J. Izco & J. M. Sánchez (1999). "Spartina patens as a weed in Galician saltmarshes (NW Iberian Peninsula)". In Joseph Caffrey; Philip R. F. Barrett; Maria Teresa Ferreira; Ilidio S. Moreira; Kevin J. Murphy; Philip Max Wade (eds.). Biology, Ecology and Management of Aquatic Plants. pp. 213–222. doi:10.1023/A:1003835201167. ISBN   978-90-481-5404-3. S2CID   28046010.{{cite book}}: |journal= ignored (help)