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.
Threatened species are any species which are vulnerable to extinction in the near future. Species that are threatened are sometimes characterised by the population dynamics measure of critical depensation, a mathematical measure of biomass related to population growth rate. This quantitative metric is one method of evaluating the degree of endangerment without direct reference to human activity.
The conservation status of a group of organisms indicates whether the group still exists and how likely the group is to become extinct in the near future. Many factors are taken into account when assessing conservation status: not simply the number of individuals remaining, but the overall increase or decrease in the population over time, breeding success rates, and known threats. Various systems of conservation status are in use at international, multi-country, national and local levels, as well as for consumer use such as sustainable seafood advisory lists and certification. The two international systems are by the International Union for Conservation of Nature (IUCN) and The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).
Moʻomomi is a Nature Conservancy preserve located on the northwestern shore of Molokaʻi in Hawaii. It was established in 1988. This area is dry and hot, primarily denuded of soil due to overgrazing and poor land use practices over the last 150 years.
Euphorbia arbuscula is a species of plant in the spurge family (Euphorbiaceae). It is endemic to the archipelago of Socotra in Yemen. Its natural habitats are subtropical or tropical dry forests and subtropical or tropical dry shrubland.
Euphorbia kaokoensis is a rare species of plant found in certain rocky areas of Namibia and Angola. It can appear as a woody shrub or a small tree, with green leaves that pale on undersides, which contain conspicuous veins. Males produce clusters of flowers from November to January. The species is very rare, found only at a few locations, although no threats are known.
Euphorbia santapaui is a species of plant in the family Euphorbiaceae. It is endemic to Tamil Nadu in India. It is threatened by habitat loss.
Euphorbia tanaensis, commonly known as the Tana River Euphorbia, is a critically endangered flowering plant from the family Euphorbiaceae, commonly known as the Spurge family. It is found in only one location on the Tana River in Kenya. Initially identified with nine trees in 1988, a subsequent survey in 2006 revealed that only four individuals remain, with no evidence of natural regeneration. Its habitat is under immediate threat from deforestation.
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching, and invasive species. The International Union for Conservation of Nature (IUCN) Red List lists the global conservation status of many species, and various other agencies assess the status of species within particular areas. Many nations have laws that protect conservation-reliant species which, for example, forbid hunting, restrict land development, or create protected areas. Some endangered species are the target of extensive conservation efforts such as captive breeding and habitat restoration.
Euphorbia deltoidea is a species of flowering plant endemic to Florida in the United States. The taxonomy of the plant is difficult, with some authorities dividing it into four subspecies and some into three; also, it is frequently listed as a member of the old genus Chamaesyce. One subspecies, ssp. deltoidea, is a federally listed endangered species called deltoid spurge. It is found only in Miami-Dade County. Another subspecies, ssp. adhaerens, is often included with it under the name deltoidea instead of separately, making it difficult to keep count of how many endangered plants there are. This is generally dealt with by placing the "endangered species" label on any taxon within the species that is limited to Miami-Dade County, however many names they may have.
Euphorbia deppeana is a rare species of flowering plant in the family Euphorbiaceae known by the common names Deppe's broomspurge and Oahu sandmat. It is endemic to Oʻahu, Hawaii, where it is known from only one population in moist shrublands on Nuʻuanu Pali. Like other native Hawaiian euphorbs it is called ʻakoko locally.
Euphorbia remyi is a rare species of flowering plant in the family Euphorbiaceae. It is known by the common name Remy's sandmat locally as ʻakoko. It is endemic to the island of Kauaʻi in Hawaii, where it grows in mixed mesic forests, wet forests and bogs from 150 to 900 m.
Euphorbia skottsbergii is a rare species of flowering plant in the euphorb family known by the common names coastal sandmat and Skottsberg's broomspurge. It is endemic to Hawaii, where it is found in coastal shrublands on Oʻahu, Molokaʻi, Maui, and Kahoʻolawe. Like other Hawaiian euphorbs, this plant is known locally as ʻakoko.
Euphorbia antiquorum, known as antique spurge and "Euphorbia of the Ancients", is a species of succulent plant in the family Euphorbiaceae. It is widespread throughout peninsular India, but its wild origin is obscure. Escaped or naturalized and widely cultivated in neighbouring regions, such as Burma, China, Bangladesh, India, Indonesia, Iran, Malaysia, Myanmar, Pakistan, Thailand, the Philippines, Sri Lanka, and Vietnam, and in many tropical zones worldwide.
Endangered plants of Europe, the list below contains plants that dwell in or migrate to any region in Europe and any nearby islands of the Atlantic Ocean. This includes plants that are found in the East Atlantic Ocean (Azores), Iceland, the Adriatic Sea, the Sea of Azov, the Black and Caspian Sea, Corsica, Cyprus, Palearctic, Russia, Eurasia, North African Coast, the Mediterranean Sea and islands located in the Mediterranean Sea, and the islands of Spain. As of 2007, twenty-one percent of Europe's vascular plant species are classified as threatened, according to the IUCN. The list below was compiled from data on the IUCN Red List of Endangered Species (IUCN) and "Earth's Endangered Creatures" (Online). The International Union for Conservation of Nature, identifies species in need of attention before approaching extinction and works to increase prevention of extinction. The list below includes vulnerable (VU), endangered (EN), critically endangered (CR), and recently extinct (EX) species.
The North-West University Botanical Garden on the Potchefstroom Campus of the North-West University (NWU) is the only botanical garden in the North West Province of South Africa. The Garden spans just under three hectares and is open to the public.
Euphorbia groenewaldii is a species of flowering plant in the family Euphorbiaceae native to southern Africa. It is listed as endemic to and Critically Endangered in South Africa due to habitat destruction and overcollection. Kew's Plants of the World Online also lists it as native to Mozambique.
Euphorbia hypericifolia is a species of perennial herb in the genus Euphorbia native to tropical Americas. It normally grows up to 2 feet (0.6 m) in height, and contains milky sap which can cause skin and eye irritation.
