Brittle thorn | |
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Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Caryophyllales |
Family: | Nyctaginaceae |
Tribe: | Bougainvilleeae |
Genus: | Phaeoptilum Radlk. |
Species: | P. spinosum |
Binomial name | |
Phaeoptilum spinosum | |
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range [1] [2] [3] | |
Synonyms | |
Amphoranthus spinosus (Radlk.) S.Moore Contents |
Phaeoptilum spinosum (brittle thorn) is a shrub that occurs in central Namibia. It is the only species in the genus Phaeoptilum. It is a valuable drought-resistant fodder plant, browsed by goats and kudu. The bush bears winged red fruits in October. [4]
The raspberry is the edible fruit of a multitude of plant species in the genus Rubus of the rose family, most of which are in the subgenus Idaeobatus. The name also applies to these plants themselves. Raspberries are perennial with woody stems. World production of raspberries in 2019 was 822,493 tonnes, led by Russia with approximately 21% of the total.
Mangosteen, also known as the purple mangosteen, is a tropical evergreen tree with edible fruit native to tropical lands surrounding the Indian Ocean. Its origin is uncertain due to widespread prehistoric cultivation. It grows mainly in Southeast Asia, southwest India and other tropical areas such as Colombia, Puerto Rico and Florida, where the tree has been introduced. The tree grows from 6 to 25 metres tall. The fruit of the mangosteen is sweet and tangy, juicy, somewhat fibrous, with fluid-filled vesicles, with an inedible, deep reddish-purple colored rind (exocarp) when ripe. In each fruit, the fragrant edible flesh that surrounds each seed is botanically endocarp, i.e., the inner layer of the ovary. Seeds are both almond-shaped and -sized.
Adansonia is a genus made up of eight species of medium to large deciduous trees known as baobabs. Previously classified within the family Bombacaceae, they are now placed in the Malvaceae. They are native to Madagascar, mainland Africa and Australia. Trees have also been introduced to other regions such as Asia. The generic name honours Michel Adanson, the French naturalist and explorer who described Adansonia digitata. The baobab is also known as the "upside down tree", a name that originates from several myths. They are among the most long-lived of vascular plants and have large flowers that are reproductive for a maximum of 15 hours. The flowers open around dusk; opening so quickly that movement can be detected by the naked eye and are faded by the next morning. The fruits are large, oval to round and berry-like and hold kidney-shaped seeds in a dry, pulpy matrix.
Harpagophytum, also called grapple plant, wood spider, and most commonly devil's claw, is a genus of plants in the sesame family, native to southern Africa. Plants of the genus owe their common name "devil's claw" to the peculiar appearance of their hooked fruit. Several species of North American plants in the genus Proboscidea and certain species of Pisonia, however, are also known by this name. Devil's claw's tuberous roots are used in folk medicine to reduce pain.
Arbutus unedo is an evergreen shrub or small tree in the flowering plant family Ericaceae, native to the Mediterranean region and western Europe north to western France and southwest and northwest of Ireland. The tree is well known for its fruit that bear some resemblance to the strawberry hence the common name "strawberry tree", yet it is not closely related to the Fragaria plant.
Pandanus tectorius is a species of Pandanus (screwpine) that is native to Malesia, eastern Australia, and the Pacific Islands. It grows in the coastal lowlands typically near the edge of the ocean. Common names in English include thatch screwpine, Tahitian screwpine, hala tree, pandanus, and pu hala in Hawaiian. The fruit is sometimes known as hala fruit.
Salvadora persica or the toothbrush tree is a small evergreen tree native to the Middle East, Africa, and India. Its sticks are traditionally used as a natural toothbrush called miswak and are mentioned by the World Health Organization for oral hygiene use.
Opuntia ficus-indica, the Indian fig opuntia, fig opuntia or prickly pear, is a species of cactus that has long been a domesticated crop plant grown in agricultural economies throughout arid and semiarid parts of the world. O. ficus-indica is the most widespread and most commercially important cactus. It is grown primarily as a fruit crop, and also for the vegetable nopales and other uses. Cacti are good crops for dry areas because they convert water into biomass efficiently. O. ficus-indica, as the most widespread of the long-domesticated cactuses, is as economically important as maize and blue agave in Mexico. Because Opuntia species hybridize easily, the wild origin of O. ficus-indica is likely to have been in Mexico due to the fact that its close genetic relatives are found in central Mexico.
Searsia pyroides, previously known as Rhus pyroides, is a species of Searsia, native to southern Africa. This tree occurs throughout the whole of South Africa, a part of Botswana, Zimbabwe and Tanzania and in some areas of Namibia near Windhoek.
Adansonia digitata, the African baobab, is the most widespread tree species of the genus Adansonia, the baobabs, and is native to the African continent. The long-lived pachycauls are typically found in dry, hot savannas of sub-Saharan Africa, where they dominate the landscape, and reveal the presence of a watercourse from afar. Their growth rate is determined by ground water or rainfall, and their maximum age, which is subject to much conjecture, seems to be in the order of 1,500 years. They have traditionally been valued as sources of food, water, health remedies or places of shelter and are steeped in legend and superstition. European explorers of old were inclined to carve their names on baobabs, and many are defaced by modern graffiti.
Hakea bucculenta, commonly known as red pokers, is a large shrub in the family Proteaceae endemic to Western Australia. A spectacular ornamental shrub with red or orange flowers that appear in rod-like blooms in leaf axils for an extended period from May to November.
The long-snouted bat is a species of bat in the family Phyllostomidae. It is monotypic within the genus Platalina. It is endemic to northern Peru and northern Chile. It feeds almost exclusively on the nectar and fruit of the columnar cactus. The species is rare, but has a wide distribution with at least 25 populations, and is listed as near-threatened due to habitat loss causing the removal of their primary food source.
Salsola is a genus of the subfamily Salsoloideae in the family Amaranthaceae. The genus sensu stricto is distributed in central and southwestern Asia, North Africa, and the Mediterranean. A common name of various members of this genus and related genera is saltwort, for their salt tolerance. The genus name Salsola is from the Latin salsus, meaning "salty".
Juncus articulatus is a flowering plant species in the rush family Juncaceae. It is known by the common name jointleaf rush or jointed rush, which can also refer to J. kraussii from Australia. It is native to Eurasia, Canada, Greenland, and much of the United States. It grows in moist areas, such as wet sand, and thrives in calcareous soils. J. articulatus was found to be more sensitive to drought and salt stress than its congeners J. acutus and J. maritimus. It is a perennial herb producing mainly erect stems from a short rhizome. The stem may root at nodes, and it generally has one or more flattened hollow cylindrical leaves up to 10 centimeters long. Transverse internal partitions or joints may be seen or felt in the leaf of the plant.
Xanthium spinosum is a species of flowering plant in the aster family known by many common names, including spiny cocklebur, prickly burweed and Bathurst burr. This species is part of the genus Xanthium that encompasses 25 different species of flowering plants of the daisy family, Asteraceae, and sunflower tribe.
Citharexylum spinosum is a species of flowering plant in the family Verbenaceae that is native to southern Florida in the United States, the Caribbean, Guyana, Suriname, and Venezuela. Common names include Florida fiddlewood and spiny fiddlewood.
Namibia is an arid country that is regularly afflicted by droughts. Large rivers flow only along its northern and southern borders, but they are far from the population centers. They are also far from the country's mines, which are large water users. In order to confront this challenge, the country has built dams to capture the flow from ephemeral rivers, constructed pipelines to transport water over large distances, pioneered potable water reuse in its capital Windhoek located in the central part of Namibia, and built Sub-Saharan Africa's first large seawater desalination plant to supply a uranium mine and the city of Swakopmund with water. A large scheme to bring water from the Okavango River in the North to Windhoek, the Eastern National Water Carrier, was only partially completed during the 1980s.
Commiphora africana, commonly called African myrrh, is a small deciduous tree belonging to the Burseraceae, a family akin to the Anacardiaceae, occurring widely over sub-Saharan Africa in Angola, Botswana, Burkina Faso, Chad, Eritrea, Ethiopia, Kenya, Mali, Mauritania, Mozambique, Namibia, Niger, Senegal, Somalia, South Africa, Sudan, Swaziland, Tanzania, Uganda, Zambia and Zimbabwe. On sandy soils this species sometimes forms pure stands, deserving consideration as a plant community or association.
Catophractes alexandri, the only species in the genus Catophractes, is a spiny shrub or small tree up to 3m tall, belonging to the family Bignoniaceae and occurring in the hot, low-rainfall regions of Namibia, the Northern Cape, Kalahari Desert, Botswana, western Zimbabwe and Limpopo. Preferring calcrete, limestone outcrops and soils, the species often forms pure communities, or grows in association with Colophospermum mopane, Rhigozum virgatum, Phaeoptilum spinosum and Acacia nebrownii. It is parasitised by several Tapinanthus spp.
The 2018–2020 Southern Africa drought is an ongoing period of drought taking place in Southern Africa. The drought began in late October 2018, and is negatively affecting food security in the region. As of mid-August 2019, the drought is classified as a level 2 Red-Class event by the Global Disaster Alert and Coordination System. The alert level was reduced to the Orange-1.7 by 12 December 2019, as the new wet season had started. As of September 2020, the drought is classified as a level 2 Red-Class event. The drought continued into early 2021.