Sorghastrum nutans

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Sorghastrum nutans
Sorghastrum nutans Tennessee.jpg
Indiangrass in bloom
Scientific classification OOjs UI icon edit-ltr.svg
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
(L.) Nash
Synonyms [1]
  • Andropogon avenaceusMichx.
  • Andropogon nutansL.
  • Andropogon nutans var. avenaceus(Michx.) Hack.
  • Chrysopogon avenaceus(Michx.) Benth.
  • Sorghastrum avenaceum(Michx.) Nash

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]

Contents

Description

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]

Ecology

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]

Culture

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]

Related Research Articles

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<span class="mw-page-title-main">Tallgrass prairie</span> Ecosystem native to central North America

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<span class="mw-page-title-main">Flint Hills</span> Geographic and ecological region of Kansas and Oklahoma, United States

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."

<i>Andropogon gerardi</i> Species of grass

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.

<i>Brachypodium sylvaticum</i> Species of grass

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.

<i>Pedicularis canadensis</i> Species of flowering plant

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.

<i>Schizachyrium scoparium</i> Species of grass

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.

<i>Sporobolus heterolepis</i> Species of flowering plant

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.

<i>Silene nutans</i> Species of flowering plant

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<span class="mw-page-title-main">Konza Prairie Biological Station</span>

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<span class="mw-page-title-main">Harrell Prairie Botanical Area</span>

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<i>Sorghastrum</i> Genus of grasses

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<i>Lespedeza leptostachya</i> Species of plant

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<i>Muhlenbergia cuspidata</i> Species of flowering plant

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References

  1. "Sorghastrum nutans". Germplasm Resources Information Network . Agricultural Research Service, United States Department of Agriculture . Retrieved 2011-03-03.
  2. 1 2 "Sorghastrum nutans". Integrated Taxonomic Information System . Retrieved 2024-10-16.
  3. USDA, NRCS (n.d.). "Sorghastrum nutans". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 16 October 2024.
  4. Missouri Botanical Garden: Sorghastrum nutanshorticultural info.
  5. "Sorghastrum nutans (L.) Nash GRIN-Global". npgsweb.ars-grin.gov. Retrieved 16 October 2024.
  6. Floridata: Sorghastrum nutans
  7. 1 2 3 4 "Indiangrass." Plant Fact Sheet.2011. Accessed July 26, 2015
  8. 1 2 Hilty, John (2016). "Indian Grass (Sorghastrum nutans)". Illinois Wildflowers.
  9. The Xerces Society (2016), Gardening for Butterflies: How You Can Attract and Protect Beautiful, Beneficial Insects, Timber Press.
  10. "Oklahoma Symbols | Oklahoma Historical Society". Oklahoma Historical Society | OHS. Retrieved 16 October 2024.
  11. "South Carolina State House | South Carolina State Symbols". www.scstatehouse.gov. Retrieved 16 October 2024.