| Euphorbia caput-medusae | |
|---|---|
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Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Malpighiales |
| Family: | Euphorbiaceae |
| Tribe: | Euphorbieae |
| Subtribe: | Euphorbiinae |
| Genus: | Euphorbia |
| Species: | E. caput-medusae |
| Binomial name | |
| Euphorbia caput-medusae | |
Euphorbia caput-medusae ("Medusa's Head") is a plant of the genus Euphorbia that occurs in and around Cape Town, South Africa.
This succulent resembles the head of Medusa, with many serpent-like stems arising from a short, central caudex. They sometimes exceed 1 metre in diameter, partly buried in the ground, covered with numerous crowded branches. [2]
Euphorbia caput-medusae was introduced to the Netherlands around 1700 and was one of the early plants described by Linnaeus ( Species Plantarum , 1753). [3]
This species is primarily coastal, occurring along the western coast of South Africa, southwards to the Cape Peninsula. It is still common around Cape Town where it grows in deep sand or rocky outcrops on the coast. It is particularly common in the Peninsula Shale Renosterveld vegetation of Signal Hill.
It also occurs along the south coast of the Western Cape Province, from Cape Town the form previously known as muirii extends along the coast eastwards as far as Mossel Bay. [4]
Amaryllis is the only genus in the subtribe Amaryllidinae. It is a small genus of flowering bulbs, with two species. The better known of the two, Amaryllis belladonna, is a native of the Western Cape region of South Africa, particularly the rocky southwest area between the Olifants River Valley and Knysna.
Euphorbia is a very large and diverse genus of flowering plants, commonly called spurge, in the family Euphorbiaceae. "Euphorbia" is sometimes used in ordinary English to collectively refer to all members of Euphorbiaceae, not just to members of the genus.
Table Mountain is a flat-topped mountain forming a prominent landmark overlooking the city of Cape Town in South Africa. It is a significant tourist attraction, with many visitors using the cableway or hiking to the top. Table Mountain National Park is the most visited national park in South Africa, attracting 4.2 million people every year for various activities. The mountain has 8,200 plant species, of which around 80% are fynbos, meaning fine bush. It forms part of the Table Mountain National Park, and part of the lands formerly ranged by Khoe-speaking clans, such as the !Uriǁʼaes. It is home to a large array of mostly endemic fauna and flora.
Fynbos is a small belt of natural shrubland or heathland vegetation located in the Western Cape and Eastern Cape provinces of South Africa. This area is predominantly coastal and mountainous, with a Mediterranean climate and rainy winters. The fynbos ecoregion is within the Mediterranean forests, woodlands, and scrub biome. In fields related to biogeography, fynbos is known for its exceptional degree of biodiversity and endemism, consisting of about 80% species of the Cape floral kingdom, where nearly 6,000 of them are endemic. This land continues to face severe human-caused threats, but due to the many economic uses of the fynbos, conservation efforts are being made to help restore it.
Table Mountain National Park, previously known as the Cape Peninsula National Park, is a national park in Cape Town, South Africa, proclaimed on 29 May 1998, for the purpose of protecting the natural environment of the Table Mountain Chain, and in particular the rare fynbos vegetation. The park is managed by South African National Parks. The property is included as part of the UNESCO Cape Floral Region World Heritage Site.
The thoracoepigastric vein runs along the lateral aspect of the trunk between the superficial epigastric vein below and the lateral thoracic vein above and establishes an important communication between the femoral vein and axillary vein. This is an especially important vein when the inferior vena cava (IVC) becomes obstructed, by providing a means of collateral venous return. It creates a cavocaval anastomosis by connecting with superficial epigastric veins arising from femoral vein just below inguinal ligament.
Tillandsia caput-medusae is a species of flowering plant in the bromeliad family, Bromeliaceae, subfamily Tillandsioideae. Common names include octopus plant and medusa's head. An epiphyte native to Central America and Mexico, T. caput-medusae is a commonly cultivated bromeliad species. The thick, channeled, tapering and twisting leaves are up to 25 cm (9.8 in) long and are covered in fine gray hairs. The rosette of leaves arise from an inflated pseudobulb. Pups are produced after blooming, as is usual with most Tillandsia species.
Senecio angulatus, also known as creeping groundsel and Cape ivy, is a succulent flowering plant in the family Asteraceae that is native to South Africa. Cape ivy is a scrambling herb that can become an aggressive weed once established, making it an invasive species. It is grown as an ornamental plant for its satiny foliage and sweet-scented flowers.
Cladoraphis is a genus of African plants in the grass family, native to southern Africa. Its phylogenetic position within the subfamily has not yet been resolved.
Taeniatherum is a genus of Eurasian and North African plants in the grass family.
Hordelymus is a genus of European, north African, and southwest Asian plants in the grass family.
Aloiampelos, formerly Aloe ser. Macrifoliae is a genus of succulent plants in the subfamily Asphodeloideae, comprising seven species found in Southern Africa. They are typically multi-branched climbing or sprawling shrubs, with long spindly stems and a large woody base on the ground. These characteristics, as well as their soft, narrow, triangular leaves whose lower part ensheathes the stem, make them easy to distinguish.
Peninsula Sandstone Fynbos is a unique and endangered vegetation type that is endemic to the Cape Peninsula in Cape Town. This type of Mountain Fynbos occurs on very poor, acidic soils but is incredibly rich in biodiversity with an enormous number of plant species – many of which occur nowhere else. Due to its poor soils and steep, inaccessible location, it has not been developed for farming or houses, and consequently it is relatively well conserved.
Cecilia is a section of the Table Mountain National Park on the lower eastern slopes of Table Mountain in Cape Town, located just to the south of Kirstenbosch National Botanical Garden. It was previously used for commercial logging and known as Cecilia Forest or Cecilia Plantation, but has now been given protected status and integrated into the National Park.
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.
Robertson Karoo is a semi-arid vegetation type, restricted to sections of the Breede River Valley, Western Cape Province, South Africa. It is a subtype of Succulent Karoo and is characterised by the dominance of succulent plant species, and by several endemic plants and animals.
Cordylus macropholis, the large-scaled girdled lizard, is a small (55-77 mm) lizard endemic to the west coast of South Africa. They spend most of their time on and around a single plant species, Euphorbia caput-medusae which only occupies around 5% of the vegetation present. It is thought that they restrict themselves to these plants because they provide safer hiding places than most other shrubs, house a large range of invertebrate prey, and provide good thermal microhabitats. They can additionally be found sunbathing on, or hiding in between rocks, as these could provide protection from larger predators from which their physical adaptations might not provided them with adequate protection.
Euphorbia rhombifolia is a species of flowering plant in the Euphorbiaceae family. It is native to Namibia and South Africa, where it is widespread in clay-rich soils, extending as far east as Kwazulu-Natal.
Euphorbia mauritanica, commonly known as yellow milk bush or golden spurge, is a species of plant in the family Euphorbiaceae native to Africa.
Lobostemon montanus, the turquoise bush bugloss, mountain lobostemon or agtdaegeneesbos, is a South African species belonging to the forget-me-not family.
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