Eragrostis

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Eragrostis
Starr 020124-8001 Eragrostis cilianensis.jpg
Eragrostis cilianensis
Maui, Hawai'i
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Poaceae
Subfamily: Chloridoideae
Tribe: Eragrostideae
Subtribe: Eragrostidinae
Genus: Eragrostis
Wolf [1]
Type species
Eragrostis eragrostis
(syn of E. cilianensis)
Synonyms [3]
  • AcamptocladosNash
  • BoriskelleraTerechov
  • DiandrochloaDe Winter
  • ErochloeRaf.
  • ErosionLunell
  • MacroblepharusPhil.
  • NeeragrostisBush
  • Psilantha(K.Koch) Tzvelev
  • RoshevitziaTzvelev

Eragrostis is a large and widespread genus of plants in the grass family, found in many countries on all inhabited continents and many islands. [4] [5] [6] [7] [8] [9] [10]

Contents

Eragrostis is commonly known as lovegrass [11] or canegrass. The name of the genus is derived from the Greek words ἔρως (érōs), meaning "love", and ἄγρωστις (ágrōstis), meaning "grass". [12]

Lovegrass is commonly used as livestock fodder. The seeds appear to be of high nutritional value for some animals, but they are also very tiny and collecting them for human food is cumbersome and hence uncommon. A notable exception is teff ( E. tef ), which is used to make traditional breads on the Horn of Africa, such as Ethiopian injera and Somalian laxoox . It is a crop of commercial importance. E. clelandii and E. tremula are recorded as famine foods in Australia and Chad, respectively. [13]

Other species, such as E. amabilis , are used as ornamental plants. E. cynosuroides is used in the pūjā rites in the Hindu temple at Karighatta. Bahia lovegrass ( E. bahiensis ) is known as a hyperaccumulator of caesium-137 and can be grown to remove the highly toxic radioactive atoms from the environment. Weeping lovegrass ( E. curvula ) has been planted extensively to prevent soil erosion.

Seed dispersal is often done by passing animals; the grains' hooks latch on to fur or hair, or to clothes. Others are wind or gravity dispersed. Several herbivores feed on lovegrass, including invertebrates such as the caterpillars of the Zabulon skipper (Lon zabulon) and vertebrates. The extinct bluebuck (Hippotragus leucophaeus) was known to graze these grasses. The dense bunches also provide cover for small animals such as the rare Botteri's sparrow (Aimophila botterii). Lovegrasses may be important groundcover on oceanic islands like Laysan, where other plants are rare.

Taxonomy

Eragrostis is the type genus of the tribe Eragrostideae. [14] [15]

Formerly included [3]

Many species now considered better suited to other genera, including Cladoraphis Coelachyrum Desmazeria Diplachne Ectrosia Festuca Harpachne Poa etc.

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<i>Eragrostis dielsii</i> Species of plant

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<i>Eragrostis spectabilis</i> Species of flowering plant

Eragrostis spectabilis, known as purple lovegrass, is a species of flowering plant in the family Poaceae, native from southern Canada to northeastern Mexico. It was first described by Frederick Traugott Pursh in 1813 as Poa spectabilis, and transferred to Eragrostis by Ernst von Steudel in 1840.

<i>Eragrostis curvula</i> Species of plant

Eragrostis curvula is a species of grass known by the common name weeping lovegrass. Other common names include Boer lovegrass, curved lovegrass, Catalina lovegrass, and African lovegrass.

<i>Eragrostis lehmanniana</i> Species of grass

Eragrostis lehmanniana is a species of grass known by the common name Lehmann lovegrass. It is native to southern Africa. It is present elsewhere as an introduced species. It is well known as an invasive weed in some areas, such as Arizona in the United States.

<i>Xyris montana</i> Species of yelloweyed grass

Xyris montana, the northern yelloweyed grass, is a North American species of flowering plants in the yellow-eyed-grass family. It grows in eastern and central Canada and in the northeastern and north-central United States.

Eragrostis ciliaris, the gophertail lovegrass, is a species of grass. It is native to the Old World Tropics; nearly all of Africa, Madagascar, other Indian Ocean islands, the Arabian Peninsula, the Indian Subcontinent, Myanmar, Vietnam, Taiwan and the Philippines and a number of Pacific islands, and has been introduced to the New World Tropics and Subtropics, from the southern United States to Argentina, the Caribbean, and other Pacific islands. Its seeds are edible and nutritious, but quite small and difficult to harvest and handle, so it is usually regarded as a famine food.

<i>Eragrostis minor</i> Ornamental grass

Eragrostis minor, the little lovegrass or smaller stinkgrass, is a widespread species of flowering plant in the family Poaceae, native to most of the subtropical and warm temperate Old World, and introduced to North America, South America, and Australia. Preferring disturbed open places with little competition, and sandy or gravelly soils, it is often found growing on rail embankments, road verges, cracks in sidewalks, and waste areas. Its seeds are edible, but quite small and difficult to harvest and handle, so it is usually regarded as a famine food.

References

  1. "genus Eragrostis Wolf". Germplasm Resources Information Network (GRIN) online database. Retrieved 25 February 2011.
  2. "Eragrostis Wolf". Plants of the World Online . Royal Botanic Gardens, Kew.
  3. 1 2 "World Checklist of Selected Plant Families: Royal Botanic Gardens, Kew". Kew.org. Retrieved 29 March 2017.
  4. Wolf, Nathanael Matthaeus von (1776), Genera Plantarum Vocabulis Characteristicis Definita, vol. 23
  5. "Eragrostis Wolf Love Grasses". Atlas of Living Australia.
  6. "Eragrostis". Flora of China via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  7. "Eragrostis". Flora of Pakistan via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  8. Altervista Flora Italiana, genere Eragrostis
  9. "2013 BONAP North American Plant Atlas. TaxonMaps". BONAP.net. Retrieved 29 March 2017.
  10. "Threatened Species Programme - SANBI Red List of South African Plants". SANBI.org. Retrieved 29 March 2017.
  11. "Eragrostis". Integrated Taxonomic Information System . Retrieved 4 March 2011.
  12. Quattrocchi, Umberto (2006). CRC World Dictionary of Grasses. Vol. II E-O. CRC Press. p. 805. ISBN   978-0-8493-1303-5.
  13. Freedman, Robert (1998). "Famine Foods – Poaceae or Graminae". Archived from the original on 2007-02-06. Retrieved 12 November 2007.
  14. W. T., Thiselton-Dyer (1 January 1897). Flora capensis: being a systematic description of the plants of the Cape colony, Caffraria, & Port Natal (and neighbouring territories). Vol. 7 Pt 2. Lovell Reeve & Co. Retrieved 29 March 2017.
  15. "Eragrostideae Stapf". Tropicos . Missouri Botanical Garden . Retrieved 29 March 2017.