A cactus is a member of the plant family Cactaceae, a family comprising about 127 genera with some 1750 known species of the order Caryophyllales. The word cactus derives, through Latin, from the Ancient Greek word κάκτος (káktos), a name originally used by Theophrastus for a spiny plant whose identity is now not certain. Cacti occur in a wide range of shapes and sizes. Although some species live in quite humid environments, most cacti live in habitats subject to at least some drought. Many live in extremely dry environments, even being found in the Atacama Desert, one of the driest places on Earth. Because of this, cacti show many adaptations to conserve water. For example, almost all cacti are succulents, meaning they have thickened, fleshy parts adapted to store water. Unlike many other succulents, the stem is the only part of most cacti where this vital process takes place. Most species of cacti have lost true leaves, retaining only spines, which are highly modified leaves. As well as defending against herbivores, spines help prevent water loss by reducing air flow close to the cactus and providing some shade. In the absence of true leaves, cacti's enlarged stems carry out photosynthesis. Cacti are native to the Americas, ranging from Patagonia in the south to parts of western Canada in the north—except for Rhipsalis baccifera, which also grows in Africa and Sri Lanka.
Schlumbergera is a small genus of cacti with six to nine species found in the coastal mountains of south-eastern Brazil. These plants grow on trees or rocks in habitats that are generally shady with high humidity, and can be quite different in appearance from their desert-dwelling cousins. Most species of Schlumbergera have stems which resemble leaf-like pads joined one to the other and flowers which appear from areoles at the joints and tips of the stems. Two species have cylindrical stems more similar to other cacti. Recent phylogenetic studies using DNA have led to three species of the related genus Hatiora being transferred into Schlumbergera, though this change is not universally accepted.
Pachycereus pringlei, also known as Mexican giant cardon or elephant cactus, is a species of cactus native to northwestern Mexico in the states of Baja California, Baja California Sur, and Sonora. It is commonly known as cardón, a name derived from the Spanish word cardo, meaning "thistle".
The term ceroid cactus is used to describe any of the species of cacti with very elongated bodies, including columnar growth cacti and epiphytic cacti. The name is from the Latin cēreus, wax taper, referring to the stiff, upright form of the columnar species. Some species of ceroid cacti were known as torch cactus or torch-thistle, supposedly due to their use as torches by Native Americans in the past.
Corryocactus is a genus of cacti. The genus was formerly placed in the tribe Notocacteae. It has also been placed in the tribe Echinocereeae. A 2011 molecular phylogenetic study excluded the genus from the "core" Echinocereeae, commenting that it lay "outside of a well-supported larger clade in our analysis".
Cactus Club Cafe is a Canadian-owned chain of premium casual restaurants that originated in North Vancouver, British Columbia. The chain has since expanded to 31 locations throughout Canada, with other locations throughout British Columbia, Alberta, Saskatchewan, and Ontario.
Cactus is a simple test framework for unit testing server-side Java code from the Jakarta Project. The intent of Cactus is to lower the cost of writing tests for server-side code. It uses JUnit and extends it. Cactus implements an in-container strategy, meaning that tests are executed inside the container.
Echinopsis pachanoi —known as San Pedro cactus—is a fast-growing columnar cactus native to the Andes Mountains at 2,000–3,000 m (6,600–9,800 ft) in altitude. It is found in Argentina, Bolivia, Colombia, Chile, Ecuador and Peru, and it is cultivated in other parts of the world. Uses for it include traditional medicine and traditional veterinary medicine, and it is widely grown as an ornamental cactus. It has been used for healing and religious divination in the Andes Mountains region for over 3,000 years. It is sometimes confused with its close relative Echinopsis peruviana.
Opuntia, commonly called prickly pear or pear cactus, is a genus of flowering plants in the cactus family Cactaceae. Prickly pears are also known as tuna (fruit), sabra, nopal from the Nahuatl word nōpalli for the pads, or nostle, from the Nahuatl word nōchtli for the fruit; or paddle cactus. The genus is named for the Ancient Greek city of Opus, where, according to Theophrastus, an edible plant grew and could be propagated by rooting its leaves. The most common culinary species is the Indian fig opuntia (O. ficus-indica).
The Citroën C4 Cactus is a subcompact crossover SUV, produced by French automaker Citroën in Spain between April 2014 and December 2017, with production of the second generation commencing in October 2017, with the final months of production being disrupted by the COVID-19 pandemic. The C4 Cactus is considered a compact SUV, although it is based on the PSA PF1 platform that underpins the smaller Citroën C3 and DS3.
Cereus hexagonus or lady of the night cactus is a species of columnar cactus found in Ecuador and Venezuela.
Cereus insularis is a species of columnar cactus found in Brazil.
Opuntia fuliginosa is a species of prickly pear cactus found in the Sonoran Desert in Mexico.
Opuntia elata is a species of cactus found in Bolivia, Paraguay, southern Brazil, northern Argentina, and Uruguay.
Opuntia stenopetala is a species low bushy cactus, often forming thickets or mats, the main branches creeping and resting on the edges of the joints. Its native range is within Mexico. It is dioecious, with male and female flowers on separate plants.
Cereus lanosus or is a species of columnar cactus found in Central, Cordillera, Concepción, and Paraguarí departments of Paraguay. The plant is found growing in rocky hills at elevations of 250 and 300 meters.
Corryocactus apiciflorus or is a species of columnar cactus found in Peru.
Corryocactus erectus or is a species of columnar cactus found in Peru.
The Echinocereeae are a tribe of cacti in the subfamily Cactoideae. Since 2006, the tribe has included the former tribe Pachycereeae in many treatments of cactus classification. The exact circumscription of the tribe has been subject to considerable change, particularly since molecular phylogenetic approaches have been used in determining classifications, and remains uncertain. The tribe includes large treelike species, such as the saguaro, as well as shorter shrubby species. Most members of the tribe are found in desert regions, particularly in Mexico and the southwestern United States.
The Cliff Villa Peninsula is a promontory where two currents meet on the north-westerly point of the island of Curaçao
