A cactus is a member of the plant family Cactaceae[a], which has about 127 genera and about 1750 recognized species. Cactaceae belongs to the order Caryophyllales. [4] The Latin word “cactus” is derived from the Ancient Greek word “kktos,” which Theophrastus first used to refer to a spiky plant whose identify is currently unknown. [5] There are many different sizes and shapes of cacti. Most cactus reside in settings that experience at least some drought, despite the fact that some species can tolerate fairly humid situations. Many of them can even be found in the Atacama Desert, one of the driest places on Earth, where they exist in extremely dry circumstances. Cacti have developed a variety of adaptations to conserve water as a result. As an illustration, nearly all cacti are succulents, which means that their swollen, fleshy sections are designed to store water. Unlike many other succulents, most cacti only have a stem where this crucial process occurs. The majority of cacti species no longer have actual leaves; instead, they only have spines, which are heavily modified leaves. Spines help limit water loss by slowing air movement around the cactus and offering some shade, in addition to protecting it from herbivores. Photosynthesis is performed by cacti’s expanded stems in the lack of real leaves. Except for Rhipsalis baccifera, which also grows in Africa and Sri Lanka, all of the Americas, from Patagonia in the south to sections of western Canada in the north, are home to cacti.
Areoles, a type of greatly shortened branch, are specialized structures that create cactus spines. Cacti can be identified by their areoles. Areoles also produce multipetalled, tubular blooms in addition to spines. Because many cacti have extended dormant periods and short growing seasons, they may respond fast to any rainfall. This is made possible by their large but shallow root systems, which swiftly absorb any water that reaches the ground surface. Because cactus stems are frequently ribbed or fluted, they can easily stretch and contract to quickly absorb water after rain and then hold onto it during protracted droughts. The majority of cacti use a unique process called “crassulacean acid metabolism” (CAM) as part of photosynthesis, similar to other succulent plants. Unlike photosynthesis, which occurs during the day, transpiration—during which carbon dioxide enters the plant and water escapes—occurs at night. The plant converts the carbon dioxide it absorbs into malic acid and stores it there until daybreak, when it is solely used for photosynthesis. The cooler, more humid nighttime hours are when transpiration occurs, which greatly reduces water loss.
The globe-shaped stems of many smaller cacti combine the maximum volume of water storage with the smallest surface area of transpiration loss. The largest[b] free-standing cactus is Pachycereus pringlei, which reaches a maximum height of 19.2 m (63 ft)[7], while Blossfeldia liliputiana has the lowest diameter at maturity, measuring just around 1 cm (0.4 in). [8] During a downpour, a mature saguaro (Carnegiea gigantea) is believed to be capable of soaking up 200 US gallons (760 l; 170 imp gal) of water. [9] Only a few species look significantly like the rest of the family. Plants belonging to the genera Leuenbergeria, Rhodocactus, and Pereskia resemble nearby trees and bushes, at least on the surface. They have enduring leaves and, as they age, stems covered with bark. Despite their appearance, they are recognized as cacti by their areoles and have numerous water-saving adaptations. Leuenbergeria is thought to be very closely related to the original species from which all cacti descended. Other cacti develop as forest climbers and epiphytes in tropical areas (plants that grow on trees). Their stems often have fewer or even no spines and are flattened, almost leaf-like in appearance, like the well-known Christmas or Thanksgiving cactus (in the genus Schlumbergera).
Many types of cacti are produced as beautiful plants, while others are raised for fodder or forage, and yet others are utilized as food (particularly their fruit). An bug that lives on some cactus produces cochineal.
Many succulent plants, both in the Old and New Worlds, have spiky stems, including some members of the Euphorbiaceae (euphorbias), which is why they are frequently mistakenly called “cactus.”
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What in biology is a cactus plant?
Any member of the Cactaceae family of plants that can thrive in arid environments and is distinguished by having beautiful flowers, thick, meaty stems, and no leaves.
Cacti are members of the angiosperm Cactaceae family. There are thousands of species in this family, all of which have thick, meaty stems. This family’s members frequently have colorful blooms. They thrive in the hottest, driest environments and semi-desert environments. Because of their morphological and physiological adaptations for conserving water, they can survive in these environments. The majority of cacti have succulent plant components, especially the stem. These plant components contain water that has been preserved. Additionally, the majority of them lack real leaves. They do, however, have altered leaves that look to be spines on their stem. This trait protects cacti from herbivory and water loss. Cacti typically have green stems since they lack genuine leaves. Most of the photosynthesis takes place in their stems.
The subfamilies Cactoideae, Maihuenioideae, Opuntioideae, and Pereskioideae make up the family Cactaceae. Word genesis: Cactus in Latin, kktos in Greek (“cardoon) Classification in science:
What is the scientific term for aloe vera?
For millennia, people have known and used the aloe vera plant for its benefits to their health, appearance, and skin. The Arabic term aloeh, which means “shining bitter material,” and the Latin word vera, which means “true,” are the sources of the name aloe vera. Greek scientists believed that aloe vera was a universal cure-all 2000 years ago. Aloe was known to the Egyptians as “the herb of immortality.” The aloe vera plant is used in dermatology nowadays for a variety of treatments.
History
Greece, Egypt, India, Mexico, Japan, and China are just a few of the cultures that have employed aloe vera for therapeutic purposes for millennia. 1 The Egyptian princesses Cleopatra and Nefertiti utilized it as a regular part of their beauty regimens. It was used to cure soldiers’ wounds by Alexander the Great and Christopher Columbus. John Goodyew’s translation of Dioscorides’ medical book De Materia Medica in A.D. 1655 had the earliest mention of aloe vera in written English. 2 Aloe vera was already being used in America as a laxative by the early 1800s, but in the middle of the 1930s, something changed when it was successfully utilized to treat chronic and severe radiation dermatitis. 2
Plant
Aloe barbadensis miller is the name of the plant that produces aloe vera. It is a shrubby or arborescent, perennial, xerophytic, succulent, pea-green plant that is a member of the Liliaceae family. Africa, Asia, Europe, and America’s dry climates are where it primarily grows. It can be found in Tamil Nadu, Gujarat, Maharashtra, Rajasthan, and Andhra Pradesh in India.
Anatomy
The plant bears fruits with many seeds, yellow tubular blooms, and triangular, fleshy leaves with serrated edges. Three layers make up each leaf: 1) An interior clear gel comprised of glucomannans, amino acids, lipids, sterols, and vitamins is 99 percent water. 2) The anthraquinones and glycosides found in the middle layer of latex, which is the acrid yellow sap. 3) The rind is the outside, thick layer of 1520 cells that serves as a protective covering and produces proteins and carbs. Vascular bundles located inside the rind are in charge of moving materials like water (xylem) and starch (phloem). 3
Aloe vera—is it a cactus?
Although aloe vera may look like a cactus, it belongs to the Asphodelaceae family, not the cactus family, according to taxonomy.
The evergreen perennial’s botanical name is A. vera, but it also goes by many other names, including A. barbadensis, A. indica, A. elongata, and more. Burn aloe and real aloe are some additional common names for this plant.
The Arabic word alloeh, which means “shining bitter material,” and the Latin word vera, which means “true,” are the sources of the term aloe.
A very small stem bears up to 39-inch long, dense leaves. When young, the succulent leaves have serrated edges and are green and spotted.
Only if the aloe is grown outside will its greenish-yellow flowers blossom, which emerge from a 35-inch-tall central spike.
The exterior green “rind or skin, a layer of latex, and the mesophyll layer, sometimes known as the “gel,” are the three primary parts of the leaves. This gel serves as a reservoir for water, allowing the plant to photosynthesize even when there is a drought.
Aloe vera gel, which contains 99 percent water and a range of vitamins, minerals, lipids, amino acids, enzymes, and anti-inflammatory hormones, is used widely in conventional and alternative medical procedures.
When applied topically, the gel can be used to treat skin conditions such acne, first- or second-degree burns, bug bites, and bedsores.
You can remove a leaf from a plant you grow at home, cut it open, and scoop out the gel to apply to bug bites or a sunburn.
A layer of yellowish latex containing aloin, which might have negative laxative effects if consumed, lies between the leaf skin and the gel. Aloe should also be avoided by people who are allergic to latex.
Aloe gel is generally safe to consume in modest amounts, say specialists at the Mayo Clinic, but “Aloe latex oral use raises safety issues.
Because of this, it is advisable to avoid ingesting any part of the plant because it can be somewhat poisonous to people and highly toxic to cats, dogs, and horses, according to the ASPCA.
Although aloe vera juice is a well-liked health product, keep in mind that aloin, the component found in latex that gives it its laxative effects, has been removed through processing and purification.
In traditional Chinese medicine, the plant is referred to as Lu Hui, and preparations from it are recommended as a “a purgative that kills parasites and treats constipation
Aside from its industrial and medical applications, this plant is a low-maintenance houseplant that adds interest to a yard. No matter where you reside, you can grow it both indoors and outdoors in USDA Hardiness Zones 9 through 11.
What family belongs to cacti?
Cactus, often known as cacti or cactuses, belongs to the order Caryophyllales and is a family of flowering plants with about 2,000 species and 139 genera. From British Columbia and Alberta southward, cacti are native to most of North and South America; the southernmost portion of their distribution reaches deep into Chile and Argentina. The highest number and variety of species are found in Mexico. The only cactus that might be native to the Old World are Rhipsalis species, which are found in Sri Lanka, Madagascar, and East Africa. Few cactus species exist in tropical or subtropical climes, although the majority do and are well adapted to dry conditions. List of Cactaceae plants is also available.
My cactus: Is it a boy or a girl?
A Florida scientist discovered a cactus with an interesting sexual life while researching bats in Mexico. The cardon cactus has three sexes—male, female, and hermaphrodite—and is therefore “trioecious.” Among the 1,600 cactus species, only the cardon is known to be trioecious, according to Ted Fleming, a biologist at the University of Miami. The majority of cactus species are hermaphrodites—they have both male and female reproductive organs in each flower—and depend on animals like birds, insects, and bats to spread pollen among the plants, but the cardon has evolved numerous reproductive strategies. Hermaphrodite plants have the ability to fertilize themselves, other hermaphrodites, or male plants to do so. A hermaphrodite or a male plant can fertilize a female plant. Fleming is still researching the cardon cactus to see if any of its reproduction methods are more effective than others.
What is the name for young cacti?
Offsets of cacti, commonly referred to as pups, are created by the parent plant. Cactus pups should be cut at a 45-degree angle and rooted in well-draining soil as part of the vegetative propagation procedure known as rooting.
Cacti may be consumed?
You can either leave the pads whole, cut them into strips, or chop them into cubes, depending on how you intend to use this vegetable. Cacti that are edible can be eaten raw or cooked. They can be grilled, sautéed, boiled, simmered, or deep-fried. Their ideal serving texture is soft and crispy. The texture of overcooked pads will be slimy. Combine them with various ingredients to create a range of wholesome, nutrient-rich recipes. Here are some recommendations:
You might need to switch the water you’re using to boil the pads and re-boil them. It’s possible that the sap coming from the pad is thick. As a general rule, the sap will be thicker the thicker the pad. After draining, the pads are washed in cold water. Why not prepare a traditional Mexican salad with diced tomatoes, cilantro, jalapenos, onions, and lime juice? Salt and pepper are other good additions.
Grilling
Season the pads well with salt and pepper if grilling them. When the pads are somewhat brown in color and soft to the touch, they are prepared. Additionally, you may season them with a dash of salt, a squeeze of lime juice, and a little olive oil.
Cactus pads can be added to various meals, either raw or cooked, to create flavorful, nutritious foods. They can be blended into a smoothie, or they can be diced and added as a topping to yogurt or cereal. Why not attempt incorporating them into stews, casseroles, and eggs. They make a delicious addition to quesadillas and salsa. You can choose to consume this adaptable, healthy vegetable alone, in a robust vegetable soup, in a fruit or vegetable salad, or even simply by itself! It can also be prepared into a jelly. Cactus pads can also be pickled and used to other meals as a condiment.
Cacti are what kind of plants?
Cacti are a good option if you want to give your plant collection a bit more variety. Fearful of jagged spines? Not to worry. Some varieties of cactus plants are completely spineless. Additionally, a lot of cacti have interesting characteristics like white hairs, yellow flowers, or wacky shapes. Cacti grow slowly and require little upkeep, which is even better. Cactus plants don’t require a lot of repotting, pruning, feeding, or watering.
Cactus plants are frequently confused with other succulents. Cacti are succulents with chlorophyll-containing woody or herbaceous stalks. The fleshy stems serve as a water reservoir and a photosynthesising organ for the plant. Cactus plants, in contrast to other succulents, have areoles on the outside of the stems that resemble cushions. Cacti typically have spines. The modified leaves that make up cactus spines shield the plant from predation by animals and provide shade for the plant’s surface.
If given the relatively straightforward care instructions they require, cacti make excellent landscape specimens and indoor plants. This calls for soil that drains effectively, low to moderate moisture, full sun outside or brilliant inside light, and desert cactus plants. The requirements of jungle cacti are slightly different, and they do well under lower light levels. We go over everything mentioned above next! Discover which of these 13 varieties of cactus plants would be the greatest fit for your house by reading on.