Megathyrsus maximus
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Megathyrsus maximus, known as Guinea grass and green panic grass,[2] is a large perennial bunch grass that is native to Africa and Yemen. It has been introduced in the tropics around the world. It has previously been called Urochloa maxima and Panicum maximum. It was moved to the genus Megathyrsus in 2003.[1][4]
Description
Megathyrsus maximus grows naturally in open grasslands, usually under or near trees and shrubs and along riverbanks. It can withstand wildfire and drought. The species has broad morphological and agronomic variability, ranging in height from 0.5 to 3.5 m (1.6 to 11.5 ft), with 5–10 cm (2.0–3.9 in) stems. The polyploid plant also can reproduce through apomixis, effectively cloning itself through seed.[5] Panicles are open, with as many as 9,000 seeds per plant.
Uses
It can be used as a long-term foraging grass if grazed consistently and if fertilized. It is well suited for cut-and-carry, a practice in which grass is harvested and brought to a ruminant animal in an enclosed system. Shade tolerance makes it suited to coexisting with trees in agroforestry. Some varieties have been used successfully for making silage and hay. The leaves contain good levels of protein (6–25% depending on age and nitrogen supply).
Invasive species
In some places, such as South Texas, Sri Lanka[6] and Hawai'i,[7] it is an invasive weed that suppresses or displaces local native plants and is a fire hazard.[8]
In the Australian state of Queensland, the Queensland Acclimatisation Society introduced Guinea grass to 22 locations between 1865 and 1869.[9]
See also
References
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- ^ a b Simon, B. K., and Jacobs, S. W. (2003). Megathyrsus, a new generic name for Panicum subgenus Megathyrsus. Austrobaileya, 6(3), 571-574. https://www.jstor.org/stable/41739005
- ^ a b Script error: No such module "template wrapper".
- ^ Panicum maximum. Tropical Forages.
- ^ Megathyrsus. Script error: No such module "webarchive". Grass Manual. Flora of North America.
- ^ Page Module:Citation/CS1/styles.css has no content.Rhodes, Aaron C.; Plowes, Robert M.; Martins, Dino J.; Ng’Iru, Ivy; Gilbert, Lawrence E. (2022-11-11). "The invasiveness of Guinea grass (Megathyrsus maximus) is characterized by habitat and differing herbivore assemblages in its native and invaded range" (PDF). NeoBiota. 78: 25–44. doi:10.3897/neobiota.78.87069. ISSN 1314-2488.
- ^ Dhanesh Wisumperuma, “First known record of guinea grass cultivation in Sri Lanka, 1801-1802”, Journal of the Royal Asiatic Society of Sri Lanka 53, 2007: 219-22.
- ^ Page Module:Citation/CS1/styles.css has no content.Anguiano, Dani (August 10, 2023). "Hawaii wildfires: how did the deadly Maui fire start and what caused it? Rapidly moving fires that exploded on Tuesday night on the island of Maui have killed dozens and displaced thousands". The Guardian. Archived from the original on August 10, 2023. Retrieved August 10, 2023.
- ^ Page Module:Citation/CS1/styles.css has no content.Shingler, Benjamin (August 9, 2023). "Why Maui's deadly wildfires spread so quickly". CBC News. Archived from the original on August 10, 2023. Retrieved August 10, 2023.
- ^ Clements, R. J. and E. F. Henzell. (2010).Pasture research and development in northern Australia: an ongoing scientific adventure. Tropical Grasslands 44, 221–30.
External links
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