| Panicum turgidum | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Poales |
| Family: | Poaceae |
| Subfamily: | Panicoideae |
| Genus: | Panicum |
| Species: | P. turgidum |
| Binomial name | |
| Panicum turgidum | |
Panicum turgidum [1] is an old world clumping desert bunchgrass of the genus Panicum . It is a plant of arid regions across Africa and Asia, and has been introduced to other parts of the world.
Panicum turgidum is a perennial bunchgrass, growing in dense bushes up to 1 metre (3.3 ft) tall. The stems are long-jointed, hard and polished, with few leaves, resembling bamboo shoots. Side shoots branch out at the nodes, and the stems bend over and root when the nodes get buried. The inflorescence is a terminal panicle up to 10 cm (4 in) long with solitary spikelets some 3 to 4 mm (0.12 to 0.16 in) long. The roots are covered in hairs to which fine sand adheres creating a felted appearance. [2] This is a drought- and salt-tolerant species, [3] and used for flour, fodder, thatch and erosion control. [2]
It is common across the Sahara and Arabia, from Senegal to Pakistan, and known by a number of common names, most widely as Taman, tuman, or thaman in Egypt and Arabia; merkba or markouba in Mauritania and some Saharan Arabics; and afezu in Tamachek. [4] Other common names include guinchi (eastern Sahara) and du-ghasi (Somalia). It grows on sand dunes in hot, dry climates, and will also grow in latosols. [2]
In the Nigerien Sahara, tussocks of Panicum turgidum act as a nurse plants for tree regeneration. They have been shown facilitating the regeneration of Acacia tortilis subsp. raddiana by protecting seedlings from drought and domestic herbivory. Accordingly, transplanting seedlings of Saharan trees inside Panicum’s tussocks may promote substantially reforestation in degraded areas on a long-term scale. [5] The leaves and shoots of this grass are palatable to livestock, and camels and donkeys will also eat it in the dry state. [2]
Desertification is a type of land degradation in drylands in which biological productivity is lost due to natural processes or induced by human activities whereby fertile areas become increasingly arid. It is the spread of arid areas caused by a variety of factors, such as climate change and overexploitation of soil as a result of human activity.
Mali is a landlocked nation in West Africa, located southwest of Algeria, extending south-west from the southern Sahara Desert through the Sahel to the Sudanian savanna zone. Mali's size is 1,240,192 square kilometers.
A dust storm, also called sandstorm, is a meteorological phenomenon common in arid and semi-arid regions. Dust storms arise when a gust front or other strong wind blows loose sand and dirt from a dry surface. Fine particles are transported by saltation and suspension, a process that moves soil from one place and deposits it in another.
The Sahel is the ecoclimatic and biogeographic realm of transition in Africa between the Sahara to the north and the Sudanian savanna to the south. Having a semi-arid climate, it stretches across the south-central latitudes of Northern Africa between the Atlantic Ocean and the Red Sea. The name is derived from the Arabic term for "coast, shore": this is explained as being used in a figurative sense. However, such figurative use is unattested in Classical Arabic, and it has been suggested that the word may originally have been derived from the Arabic word sahl سهل "plain" instead.
The Sahara is a desert on the African continent. With an area of 9,200,000 square kilometres (3,600,000 sq mi), it is the largest hot desert in the world and the third largest desert overall, smaller only than the deserts of Antarctica and the Arctic. The name 'Sahara' is derived from the Arabic word for "desert", ṣaḥra, plural.
The Maghreb, also known as Northwest Africa, the Arab Maghreb, and Barbary, is a subregion of North Africa that is effectively a western part of the Arab world and is predominantly Muslim. The region includes Algeria, Libya, Mauritania, Morocco, and Tunisia, which are all member states of the Arab Maghreb Union (AMU). The Maghreb additionally includes the disputed territories of Western Sahara and the cities of Ceuta and Melilla. As of 2018, the region had a population of over 100 million people.
The Aïr Mountains or Aïr Massif is a triangular massif, located in northern Niger, within the Sahara Desert. Part of the West Saharan montane xeric woodlands ecoregion, they rise to more than 1,800 m (5,900 ft) and extend over 84,000 km2 (32,000 sq mi). Lying in the midst of desert north of the 17th parallel, the Aïr plateau, with an average altitude between 500 and 900 m, forms an island of Sahel climate which supports a wide variety of life, many pastoral and farming communities, and dramatic geological and archaeological sites. There are notable archaeological excavations in the region that illustrate the prehistoric past of this region. The endangered painted hunting dog once existed in this region, but may now be extirpated due to human population pressures in this region.
The addax, also known as the white antelope and the screwhorn antelope, is an antelope of the genus Addax, that lives in the Sahara Desert. It was first described scientifically by Henri de Blainville in 1816. As suggested by its alternative name, this pale antelope has long, twisted horns - typically 55 to 80 cm in females and 70 to 85 cm in males. Males stand from 105 to 115 cm at the shoulder, with females at 95 to 110 cm. They are sexually dimorphic, as the females are smaller than the males. The colour of the coat depends on the season - in the winter, it is greyish-brown with white hindquarters and legs, and long, brown hair on the head, neck, and shoulders; in the summer, the coat turns almost completely white or sandy blonde.
The scimitar oryx, also known as the scimitar-horned oryx and the Sahara oryx, is a species of Oryx that was once widespread across North Africa. The species went extinct in the wild in 2000, but a group was released into an acclimation enclosure within the Ouadi Rimé-Ouadi Achim Faunal Reserve in 2016, then reintroduced back into the wild. Twenty-one additional animals were placed in the acclimation enclosure in 2017.
Panicum (panicgrass) is a large genus of about 450 species of grasses native throughout the tropical regions of the world, with a few species extending into the northern temperate zone. They are often large, annual or perennial grasses, growing to 1–3 m tall.
The greater Egyptian gerbil is a small rodent in the family Muridae. It is native to northern Africa where it inhabits sandy deserts, semi-arid areas and oases. It is a common species, and the International Union for Conservation of Nature has rated its conservation status as being of "least concern".
Adenium obesum is a poisonous species of flowering plant belonging to tribe Nerieae of subfamily Apocynoideae of the dogbane family, Apocynaceae, that is native to the Sahel regions, south of the Sahara, and tropical and subtropical eastern and southern Africa and Arabia. Common names include Sabi star, kudu, mock azalea, impala lily and desert rose.
Dunn's lark is a small passerine bird of the lark family. It is a desert bird which is found across parts of the Sahara and Arabia.
Mauretania's wildlife has two main influences as the country lies in two Biogeographic realms, the north sits in the Palearctic which extends south from the Sahara to roughly 19° North and the south in the Afrotropic realms. Additionally Mauritania is important for numerous birds which migrate from the Palearctic to winter there.
Iferouane, also spelled Iferouan, is an oasis town and commune in northern Niger, in Agadez Department. It is located northeast of Arlit in the northern Aïr, in the Ighazar valley near the Tamgak Range.
The South Saharan steppe and woodlands, also known as the South Sahara desert, is a deserts and xeric shrublands ecoregion of northern Africa.
The Termit Massif Total Reserve is a nature reserve in the southeast of Niger which was established in January 1962. In March 2012, a national nature and cultural reserve was established covering an area of 100,000 square kilometres (39,000 sq mi), including the entire area of the Termit Massif and Tin Toumma desert, making it the largest single protected area in Africa. The area provides habitat for many critically endangered species. Prominent among them is the addax antelope, which is categorized under the IUCN Red List as one of the rarest and most endangered species in the world; about 300 of them are reported in the reserve. A conservation effort has been launched by the Government of Niger in collaboration with many international conservation agencies. The reserve has also been declared an UNESCO World Heritage Site for the biodiversity value of the Termit Massif and surrounding Sahara Desert and for the cultural value of its archaeological sites.
Mont Idoukal-n-Taghès is the highest mountain in Niger. Mont Idoukal-n-Taghès is located in the south central Aïr Mountains, and is at the northern end of the Bagzane plateau. The village and pilgrimage site of Abatol sits at the base of the peak. The Aouderas valley, the path of a seasonal wash runs south from the foot of Idoukal-n-Taghès towards Agadez, the regional capital. The oasis town of Aouderas is just southwest of the mountain. Due to its high elevation, mount Idoukal'n'Taghes has been found to host a number of Saharan-Mediterranean and Tropical plant species that have never been recorded elsewhere in Niger.
Panicum hirticaule is a species of grass known by the common names Mexican panicgrass and roughstalked witchgrass.
Cenchrus pennisetiformis, commonly known in Australia as the Cloncurry, white or slender buffel grass, is a species of grass in the genus Cenchrus. It is native to parts of East Africa, the Arabian Peninsula and the Indian subcontinent, and has been introduced to some other parts of the world as a drought-tolerant forage crop.
