Euphorbia grandicornis | |
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Euphorbia grandicornis in the Jardín de Cactus in Guatiza on Lanzarote in the Canary Islands | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Malpighiales |
Family: | Euphorbiaceae |
Genus: | Euphorbia |
Species: | E. grandicornis |
Binomial name | |
Euphorbia grandicornis Blanc (1888) | |
Subspecies [2] | |
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Synonyms [3] | |
synonyms of E. grandicornis subsp. grandicornis:
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Euphorbia grandicornis, the cow's horn plant, is a succulent plant of the Euphorbiaceae or spurge family. It is native to the KwaZulu-Natal province and the Northern Provinces of South Africa and to Mozambique and Eswatini. [2] [4]
The specific epithet "grandicornis" means "with large horns," and refers to the pairs of spines, which look like the horns of a bull. [5]
Euphorbia grandicornis is a shrub with succulent, spiny stems that reaches a size of 0.5–2 m in height. Small leaves are formed between the spines but later drop off; the stems do the bulk of the photosynthesis. It is much branched from the base, with thorns, the branches 3-angled, erect or ascending, very deeply constricted in segments, subsagittate-ovate or reniform-sagittate, 5–13 cm long and 5 – 15 cm in diameter. [5] [6] [7]
The fruit is showy and pops open when ripe. [6]
It is found in dense dry mixed forest, on granite slopes, and on rocks, at elevations of 40 to 700 meters. [8]
Two subspecies are accepted: [2]
It is grown as a houseplant in temperate regions. [9]
Chemical constituents of E. grandicornis have been studied for their use in cancer treatment. [10]
KwaZulu-Natal is a province of South Africa that was created in 1994 when the Zulu bantustan of KwaZulu and Natal Province were merged. It is located in the southeast of the country, with a long shoreline on the Indian Ocean and sharing borders with three other provinces and the countries of Mozambique, Eswatini and Lesotho. Its capital is Pietermaritzburg, and its largest city is Durban. It is the second-most populous province in South Africa, with slightly fewer residents than Gauteng.
Kniphofia is a genus of perennial flowering plants in the family Asphodelaceae, first described as a genus in 1794. The species are native to Africa. Common names include tritoma, red hot poker, torch lily and poker plant.
Plectranthus is a genus of about 85 species of flowering plants from the sage family, Lamiaceae, found mostly in southern and tropical Africa and Madagascar. Common names include spur-flower. Plectranthus species are herbaceous perennial plants, rarely annuals or soft-wooded shrubs, sometimes succulent; sometimes with a tuberous base.
Plectranthus verticillatus, Swedish ivy, Swedish begonia or whorled plectranthus is a plant in the family Lamiaceae (Labiatae), genus Plectranthus. Despite its common name, it is not close to the ivy family of the genus Hedera.
Ceropegia stapeliiformis is a flowering plant in the genus Ceropegia (Apocynaceae), native to South Africa and Eswatini. Common names include serpent ceropegia, snake creeper, and slangkambro.
Senecio barbertonicus, the Barberton groundsel or succulent bush senecio, is an evergreen succulent shrub of the family Asteraceae and genus Senecio, native to Southern Africa, named after one of its native localities Barberton and is now also being cultivated elsewhere for its drought resistance, clusters of sweetly scented, golden-yellow, tufted flower heads in winter and attractiveness to butterflies, the painted lady butterfly in particular.
Euphorbia ingens is a species of flowering plant in the family Euphorbiaceae. It is native to dry areas of southern Africa. It is popularly known as the candelabra tree or naboom. Its milky latex can be extremely poisonous and is a dangerous irritant.
The Maputaland-Pondoland-Albany Hotspot (MPA) is a biodiversity hotspot, a biogeographic region with significant levels of biodiversity, in Southern Africa. It is situated near the south-eastern coast of Africa, occupying an area between the Great Escarpment and the Indian Ocean. The area is named after Maputaland, Pondoland and Albany. It stretches from the Albany Centre of Plant Endemism in the Eastern Cape Province of South Africa, through the Pondoland Centre of Plant Endemism and KwaZulu-Natal Province, the eastern side of Eswatini and into southern Mozambique and Mpumalanga. The Maputaland Centre of Plant Endemism is contained in northern KwaZulu-Natal and southern Mozambique.
Axiocerses tjoane, the eastern scarlet, common scarlet or scarlet butterfly, is a butterfly of the family Lycaenidae. It is found in East and southern Africa.
Euclea racemosa is a small to medium-sized evergreen tree that is indigenous to the Indian Ocean coast of Africa from Egypt to South Africa, as well as in Comoros, Oman and Yemen.
Capparis fascicularis, the zigzag caper-bush, is a plant in the Capparaceae family and is native to Africa.
Pereskia aculeata is a scrambling shrub in the family Cactaceae. Common names include Barbados gooseberry, blade-apple cactus, leaf cactus, rose cactus, and lemonvine. It is native to tropical America. The leaves and fruits are edible, containing high quantities of protein, iron and other nutrients, and it is a popular vegetable in parts of the Brazilian state of Minas Gerais under the name of ora-pro-nóbis.
Psydrax obovatus is a species of flowering plant in the family Rubiaceae. It is a shrub or tree native to southern Africa, where it ranges from the Cape Provinces to KwaZulu-Natal, the Northern Provinces, Mozambique, and Zimbabwe.
Dalbergia armata is a scrambling, deciduous species of legume that is native to subtropical to temperate regions of southeastern Africa. The robust, woody liana or small tree is armed with strong spines on the main stem and branches. It occurs sparsely or commonly in forest, bush, riparian fringes and in wooded ravines. It is sometimes employed as a bonsai subject, and it can be propagated from either seed or cuttings.
Euphorbia flanaganii, commonly known as Transkei medusa's head, is a succulent plant that belongs to the family Euphorbiaceae. It is endemic to South Africa. Due to the breadth of the Euphorbiaceae, little research specific to E. flanaganii has been conducted.
Boscia foetida, commonly known as the stink shepherd's tree and the smelly shepherd's bush, is an evergreen shrub or tree that is native to the warmer and drier parts southern Africa. It is found in semi-desert and arid bushveld, and in the west it occurs commonly in areas which are otherwise sparsely wooded. It is known for the particularly unpleasant smell of its flowers which appear during early spring, to which its specific name foetida alludes. Its freshly cut wood likewise has an unpleasant smell, and has traditional medicinal and magical uses, for instance as a protection against lightning. In central Botswana the village of Mopipi is named after this species.
Barleria elegans is a species of plant in the family Acanthaceae. It is a spiny perennial herb or subshrub native to Angola and Namibia, and to Mozambique, Zimbabwe, Eswatini, and the Northern Provinces and KwaZulu-Natal in South Africa.
Drypetes arguta, commonly known as the water ironplum, is a species of small tree or large bush in the family Putranjivaceae. It is native to tropical East Africa. It was first described in 1920 by the English botanist John Hutchinson, who named it Cyclostemon argutus. It was later transferred to the genus Drypetes.
Huernia hystrix, the porcupine huernia, is a species of flowering plant in the family Apocynaceae, native to southeastern Africa. A succulent, it has gained the Royal Horticultural Society's Award of Garden Merit.
Plectranthus purpuratus or cliff spurflower is a species of flowering plant in the family Lamiaceae, native to South Africa's Kwazulu-Natal and Mpumalanga provinces, as well as eSwatini. The name is frequently misapplied to Plectranthus ciliatus, presumably because both have purple-backed leaves.