Sorghastrum nutans | |
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Indiangrass in bloom | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Clade: | Commelinids |
Order: | Poales |
Family: | Poaceae |
Subfamily: | Panicoideae |
Genus: | Sorghastrum |
Species: | S. nutans |
Binomial name | |
Sorghastrum nutans | |
Synonyms [1] | |
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Sorghastrum nutans, known as Indiangrass, [2] [3] is a North American prairie grass found in the United States and Canada, especially in the Great Plains and tallgrass prairies. It is sometimes called Indian grass [4] , yellow Indian-grass, [2] or wood grass. [5]
Indiangrass is a warm-season perennial bunchgrass. [6] It is intolerant to shade. It grows 3 to 7 feet (1 to 2 m) tall, and is distinguished by a "rifle-sight" ligule where the leaf blade attaches to the leaf sheath. The leaf is about 3 feet (1 m) long. [7]
It blooms from late summer to early fall, producing branched clusters (panicles) of spikelets. The spikelets are golden-brown during the blooming period, and each contain one perfect floret that has three large, showy yellow stamens and two feather-like stigmas. One of the two glumes at the base of the spikelets is covered in silky white hairs. The flowers are cross-pollinated by the wind. [8]
The branches of pollinated flower clusters bend outwards. At maturity, the seeds fall to the ground. [8] There are about 175,000 seeds per pound. [7]
Sorghastrum nutans is prominent in the tallgrass prairie ecosystem and the northern, central, and Flint Hills tall grassland ecoregions, along with the grasses big bluestem (Andropogon gerardi), little bluestem (Schizachyrium scoparium) and switchgrass (Panicum virgatum). It is also common in areas of longleaf pine.
Indiangrass is adapted in the United States from the southern border to Canada and from the eastern seaboard to Montana, Wyoming and Utah. [7]
It regrows with renewed vitality after fires, so controlled burns are used, replacing extirpated large herbivores (i.e. bison), for habitat renewal.
It is a larval host to the pepper-and-salt skipper. [9]
Indiangrass is the official state grass of both Oklahoma [10] and South Carolina. [11]
The USDA Natural Resources Conservation Service lists the following uses for Sorghastrum nutans: erosion control, livestock, pollinators, restoration, and wildlife. [7]
Dry–mesic prairie is a native grassland community made up mid-to-tall grasses and a diverse mixture of forbs. The sandy loam or loamy sand soils of Dry-mesic Prairie support grasses that are shorter and grow less densely than Wet-mesic and Wet Prairies. Big bluestem, little bluestem, Indian grass, and porcupine grass are the most abundant grasses in dry-mesic prairie.
The tallgrass prairie is an ecosystem native to central North America. Historically, natural and anthropogenic fire, as well as grazing by large mammals provided periodic disturbances to these ecosystems, limiting the encroachment of trees, recycling soil nutrients, and facilitating seed dispersal and germination. Prior to widespread use of the steel plow, which enabled large scale conversion to agricultural land use, tallgrass prairies extended throughout the American Midwest and smaller portions of southern central Canada, from the transitional ecotones out of eastern North American forests, west to a climatic threshold based on precipitation and soils, to the southern reaches of the Flint Hills in Oklahoma, to a transition into forest in Manitoba.
The Flint Hills, historically known as Bluestem Pastures or Blue Stem Hills, are a region of hills and prairies that lie mostly in eastern Kansas. It is named for the abundant residual flint eroded from the bedrock that lies near or at the surface. It consists of a band of hills extending from Marshall and Washington Counties in the north to Cowley County, Kansas and Kay and Osage Counties in Oklahoma in the south, to Geary and Shawnee Counties west to east. Oklahomans generally refer to the same geologic formation as the Osage Hills or "the Osage."
Andropogon gerardi, commonly known as big bluestem, is a species of tall grass native to much of the Great Plains and grassland regions of central and eastern North America. It is also known as tall bluestem, bluejoint, and turkeyfoot.
Brachypodium sylvaticum, commonly known as false-brome, slender false brome or wood false brome, is a perennial grass native to Europe, Asia and Africa. Its native range includes most of Europe, northwestern Africa, Sudan and Eritrea, Western and Central Asia, the Indian subcontinent, China, Korea, Japan, Malesia, and New Guinea.
Pedicularis canadensis, commonly called Canadian lousewort or wood betony, is a flowering plant in the family Orobanchaceae. It is native to North America, where it is found in southeastern Canada, the eastern United States, and eastern Mexico. It has a wide-ranging natural habitat, being found in mesic to dry, forests, woodlands, and prairies.
Schizachyrium scoparium, commonly known as little bluestem or beard grass, is a species of North American prairie grass native to most of the contiguous United States as well as a small area north of the Canada–US border and northern Mexico. It is most common in the Midwestern prairies and is one of the most abundant native plants in Texas grasslands.
Sporobolus heterolepis, commonly known as prairie dropseed, is a species of prairie grass native to the tallgrass and mixed grass prairies of central North America from Texas to southern Canada. It is also found further east, to the Atlantic coast of the United States and Canada, but is much less common beyond the Great Plains and is restricted to specialized habitats. It is found in 27 states and four Canadian provinces.
Silene nutans is a flowering plant in the genus Silene, most commonly known as Nottingham catchfly.
Tragus, commonly called bur gras, burr grass or carrot-seed grass, is a genus of plants in the grass family. It is native to Africa, Australia, and Eurasia with several species on islands in the Atlantic, Indian, and Pacific Oceans plus one species in Argentina.
The Konza Prairie Biological Station is a 8,616-acre (3,487 ha) protected area of native tallgrass prairie in the Flint Hills of northeastern Kansas. "Konza" is an alternative name for the Kansa or Kaw Indians who inhabited this area until the mid-19th century. The Konza Prairie is owned by The Nature Conservancy and Kansas State University.
Houston black soil extends over 1,500,000 acres (6,100 km2) of the Texas blackland prairies and is the Texas state soil. The series is composed of expansive clays and is considered one of the classic vertisols.
The North America Prairies is a large grassland floristic province within the North American Atlantic Region, a floristic region within the Holarctic Kingdom. It lies between the Appalachian Province and the Rocky Mountains and includes the prairies of the Great Plains. It is bounded by the Canadian coniferous forests on the north and the arid semideserts to the southwest. The province itself is occupied by temperate grasslands, savannas, and shrublands. Endemism is rather limited in this province, and its boundaries are vague. During the Pleistocene much of the province was glaciated.
Harrell Prairie Botanical Area or Harrell Prairie Hill is a 160-acre (65 ha) tallgrass prairie nature preserve located within Bienville National Forest near Forest, Mississippi. It is a rare remaining example of the Jackson Prairie Belt in Mississippi. It was declared a National Natural Landmark in May 1976 and a Botanical Area by the Forest Service in 1980.
Sorghastrum is a genus of grasses, native to Africa and the Americas.
The Northern Tallgrass Prairie is one of 844 terrestrial ecoregions defined by One Earth. This ecoregion largely follows the Red River Valley in the Canadian province of Manitoba and the American states of North Dakota and Minnesota.
Lespedeza leptostachya is a rare species of flowering plant in the legume family known by the common names prairie lespedeza and prairie bush-clover. It occurs in the Upper Midwest region of the United States. The flowers are creamy-white to purplish and arranged into a narrow terminal spikes.
Dalea purpurea is a species of flowering plant in the legume family known as purple prairie clover. Native to central North America, purple prairie clover is a relatively common member of the Great Plains and prairie ecosystems. It blooms in the summer with dense spikes of bright purple flowers that attract many species of insects.
Muhlenbergia cuspidata is a species of grass known by the common name plains muhly. It is native to North America where it is distributed across central Canada and the central United States.
Stephens State Forest is a state forest located in Lucas, Clarke, Monroe, Appanoose and Davis Counties in Iowa. Stephens State Forest is 15,500 acres and split into 7 separate locations that collectively make up the largest state forest in Iowa.