The family of cactus plants includes unusual plants that come in a variety of sizes and shapes. The majority of cacti species, with the exception of four tropical species, are native to America, despite the fact that these succulents can be found all over the world. Like every group of living organisms, there are a wide range of variances among the various cacti species.
Each cactus species is actually perfectly suited to flourishing in particular habitats with a particular environment. For instance, the majority of the Echinocereus genus species are frost-tolerant and cold-hardy.
So, where can you locate cacti around the world? The majority of cacti species are often found in hot, dry climates in North and South America. These desert plants are common throughout Mexico, Canada, and much of the Southwest of the United States. They are typically found in Brazil in South America. Some cacti species are also found in Central America and nearby islands like the Galapagos and the Caribbean. The single exception is Rhipsalis baccifera, which grows in portions of tropical America, Madagascar, Mauritius, and tropical Africa.
Discover everything you need to know about this remarkable desert plant, including its habitat, by reading on. We go through crucial information that will broaden your knowledge.
Where are cacti most commonly found?
Pereskia s.l. was found to be separated into the same clades in a 2011 study that used fewer genes but more species, although it was unable to resolve the members of the “core cacti” clade. The relationships depicted above were agreed to be “the most substantial to date.” [33]
Leuenbergeria species (Pereskia s.l. Clade A) consistently lack two essential stem characteristics that are present in the majority of the remaining “caulocacti”: first, like most non-cacti, their stems start to develop bark early in the plants’ lives; second, they lack stomatastructures that regulate air intake into a plant and, consequently, regulate photosynthesis. Contrarily, caulocacti, such as the surviving species of Pereskia s.s. and several Rhodocactus species, generally delay the formation of bark and have stomata on their stems, allowing the stem the ability to play a significant role in photosynthesis. (The two extremely specialized Maihuenia species make an exception.) [34] [36]
The original cacti are believed to have been tiny trees or shrubs with photosynthesis occurring in their leaves. They were residents of tropical regions that occasionally experienced drought. If Leuenbergeria is a suitable representation of these early cacti, then despite having superficial similarities to adjacent trees, they had already developed water-saving techniques (some of which are present in members of other families in the order Caryophyllales). These included the ability to react quickly to periods of rain and minimizing transpiration by making excellent use of water during photosynthesis. The latter was accomplished by closely regulating the stomata’s opening. Early relatives of Pereskia species may have had the ability to change from the typical C3 mechanism, in which carbon dioxide is continuously used in photosynthesis, to CAM cycling, in which carbon dioxide produced during respiration is stored for use during photosynthesis when the stomata are closed. [10]
The evolutionarily significant shift toward stems serving as photosynthetic organs can be seen in the group that includes Rhodocactus and Pereskia s.s. Stomata are present in stems, and bark develops later than it does in typical trees. The “core cacti” exhibit multiple leaf losses that are more-or-less total in the Cactoideae and a continuous rise in stem succulence and photosynthesis. Whether the transition to full CAM photosynthesis in stems occurred separately in Opuntioideae and Cactoideae, in which case it never developed in Maihuenia, or whether it occurred once in the core cacti, in which case it has been lost in Maihuenia. [10]
This article’s “Phylogeny”-related sections need to be updated. Please contribute to updating this article with new information or recent events. (May 2021)
Evolutionary history
Cacti have no fossilized remains that could shed light on how they evolved. [40] Cacti’s global range, however, provides some proof. Cacti are plants native to South America and primarily the southern areas of North America, with the exception of Rhipsalis baccifera, which has only recently expanded to parts of the Old World. This indicates that the family must have originated following the division of the once-common continent Gondwana into South America and Africa during the Early Cretaceous, some 145 to 101 million years ago. [41] It’s less known exactly when cacti evolved after this divide. Older data point to an early origin that occurred in the Late Cretaceous period 9066 million years ago. The origin may have occurred considerably more recently, maybe in the very Late Eocene to Early Oligocene periods, about 3530 million years ago, according to more recent molecular analyses. [40] [42] According to the cacti’s phylogeny, the Leuenbergeria cactus may have originated in Central America and northern South America, but the caulocacti, which have stems that are more or less succulent, evolved later in the southern region of South America before migrating north. [34] It is thought that core cacti, which have firmly succulent stems, first appeared about 25 million years ago. [40] Uplifting in the central Andes, around 2520 million years ago, which was connected to rising and fluctuating aridity, may have served as a catalyst for their evolution. [34] Other succulent plants, such as the Aizoaceae in South Africa, the Didiereaceae in Madagascar, and the genus Agave in the Americas, appear to have diversified at the same time, which coincided with a global expansion of arid environments. However, the current species diversity of cacti is thought to have arisen only in the last 105 million years (from the late Miocene into the Pliocene). [40]
Cacti can grow anyplace, right?
The cactus is an amazing plant that has evolved to survive in some of the most difficult environments on Earth. From its stem to its spines, everything about it is built to maximize its capacity to store water for itself in environments with dry soil and infrequent rainfall. Because they need so little upkeep, cacti are a great choice for someone new to houseplants.
A cactus can grow everywhere, right? Despite being native to North and South America, cactus plants may thrive elsewhere. Cactuses are primarily found in the hottest, driest regions of the planet. However, some cacti species can be found in Alaska and portions of Antarctica, as well as in rain forests and on mountain ranges.
Cactuses can grow in the severe heat found in deserts all over the world and can survive on very little water. Having said that, there are several kinds of cacti that thrive in both high and low elevations, lush mountain bases, and water-rich rainforests. Despite being native to the Americas, the plant may grow everywhere in the world.
What kind of environment do cacti prefer?
Most cacti require warm climates to survive. According to Clemson Cooperative Extension, most cactus like temperatures between 65 and 85 degrees Fahrenheit. Temperatures between 45 and 55 °F are suitable throughout the winter and fall dormant periods. Lower temperatures can cause freezing and cold damage, which can destroy plants. Additionally, proper airflow and minimal humidity are preferred by cacti. Although many cacti have evolved to areas with increased humidity levels, they nevertheless cannot survive in highly humid environments.
Why are cactus exclusively found in desert areas?
Hint: Cactus grows in hot, dry places with little rainfall and desert soil. They can store water inside their leaves, which have evolved into thorns to stop transpiration.
Complete response: Cactus are one of the few plants that can withstand arid, hot climates. Additionally, spines protect them from predators. Their extensive roots can access the water below the earth. They are crucial for those living in dry climates because they stop soil erosion. Humans are also able to swallow some cactus pieces. Since the stem is the sole component of them that contains chlorophyll, it has stomata. Additionally, it contains numerous vitamins and antioxidants that guard your skin from sun damage and delay the signs of aging. At night, cacti absorb carbon dioxide and release oxygen. The Thar Desert and Great Indian Desert are other names for the Indian desert. Due to its harsh environment and sparse flora, the desert proper is known as Marusthali (dead land). In general, the Marushthali is rocky in the east while having shifting sand dunes in the west.
Cactus are primarily found in Gujarat and Rajasthan’s Thar Desert, two dry regions of India.
The stomata of cacti only open at night. Ants are hired by cactus as more Bodyguards. Its surface is waxy. Cacti have a long lifespan. Spines help stop up the passage of air around the cactus plant since air flow can cause water loss. The roots of a cactus may rot if you overwater it.
Cacti only flourish in deserts, right?
There are about 1700 species of cactus, the majority of which are indigenous to the Americas. Different conditions support the growth of various species. Here are a few of the climate zones where cactus can be found.
The Desert
Some cacti can be found in regions prone to drought, including Mexico, Texas, sections of South America, the southwest of the United States, and the Atacama Desert in Chile, the driest spot on Earth.
Deserts are where the majority of cacti species thrive. Their ability to adapt to their surroundings is what allows them to live. They make the most of the rain by storing as much water as they can. Since their roots are on the surface, they can swiftly gather water and store it in their stems.
Approximately 90% of the water that the cactus stores is in the plant. For instance, when it rains heavily, the Saguaro stores between 750 and 1000 gallons.
How does water not evaporate considering the hot nature of the desert?
Because their leaves have sunken holes and a waxy stem to prevent evaporation, cactus may continue photosynthesis during the hot season unlike other plants that lose their leaves.
In order to release some moisture, the pores frequently open at night and seal throughout the day.
They are shielded by their spines from predatory creatures. However, animals with papillae, like camels, can consume cactus with little discomfort because the spines don’t stop them from doing so.
Prickly pears, barrel cacti, and cholla are a few of the prominent species that can be found in desert regions like California.
Rainforests
Some species of cactus can be found in tropical rainforests in places like central America, the Caribbean Islands, northern South America, southeastern Brazil, and Bolivia.
Contrary to popular belief, cacti can be found in areas other than deserts. There are several that are known as jungle cactus and grow in tropical jungles. Jungle cacti lack spines, in contrast to their predominantly thorny desert counterparts.
The majority of cacti are found in cloud forests at elevations of 1,000 to 2,000 meters.
The Thanksgiving, Easter, and Christmas cacti are among the well-liked species. Most of these cacti are epiphytic or lithophytic (grow on rocks) (grow in trees). The air, dead leaves, or debris in crevices and crotches are where these succulents obtain the majority of their nutrients.
The cacti that grow inside of trees do so for support rather than to draw nutrients from the plants. Their elongated leaves’ main function is to absorb light.
It’s crucial to replicate soil that is similar to such natural conditions while attempting to cultivate jungle cacti. To do this, you’ll need a suitable potting mixture that includes, among other things, potting soil, pumice, oak leaf mold, and orchid bark.
Your cacti should always be repotted every two to three years, right after they have stopped blooming. Make that the cactus receive the proper quantity of light. They grow in limited sunshine, just like in the rainforests, so avoid exposing them to intense summer light.
Consider fertilizing them every two weeks with a tomato-type fertilizer once they reach the flowering stage. Make sure not to use a fertilizer with a lot of nitrogen.
Mountains
Cacti can be found in the highlands, despite how impossible it may seem. They do, however, flourish in low-latitude mountains. Whipple Mountains are home to such cactus.
As a result of ‘grabbing’ water in the air and facing the wind in this situation, the mountains will tend to break up the humid winds and have a side that rains.
Since the air that travels to the other side of the mountain returns compressed, hot, and dry, there is rarely any rain on that side of the mountain, which is known as the rain shadow. As they thrive in an arid climate, cacti frequently flourish in this mountainous region.
The fact that the soil in the highlands is typically degraded and extremely rocky is what allows cactus to thrive there as well.
The windy, rocky, and gritty soil found in mountainous areas is ideal for cacti growth.
Can cacti survive inside?
Despite being recognized for their love of sunlight, many cacti grow well as houseplants. For some unusual decor, place one on your windowsill or in your living area. The ideal houseplant, indoor cacti typically require less light and are smaller in stature.
Bunny Ears Cactus (Opuntia microdasys)
The bunny ears cactus gets its name from its look and is native to Mexico. Its two pads are designed like bunny ears. They should be handled carefully since they have glochids or brown prickles on them. The bunny ears cactus is the ideal indoor plant because it may reach heights of two to three feet. If given enough light, it will blossom with white flowers and bear purple fruits in the summer.
Chin Cactus (Gymnocalycium)
Gymnocalycium is a kind of cactus native to South America and is frequently referred to as the “chin cactus.” Greek for “naked kalyx,” its name alludes to the flower buds’ lack of hair or spines. Some chin cactus like shade, while others do better in sunlight, depending on the kind.
Saguaro Cactus (Carnegiea gigantea)
Although it grows slowly, the Saguaro cactus can reach a height of forty feet. This indicates that you can use it as an indoor plant for a number of years before relocating it outside. It has the traditional cactus appearance thanks to its barrel-shaped body. This plant, which is a native of the Sonoran Desert, needs a lot of sunshine. Place the plant in direct sunlight if it is being maintained indoors.
Old Lady Cactus (Mammillaria hahniana)
The mammillaria family, which comprises 250 species, includes the old lady cactus as a subspecies of pincushion cactus. It is renowned for its halo of small pink or purple flowers that bloom in the spring and possesses hairs and spines. A sandy potting mix should be used to plant the old lady cactus, and it should receive water every other week.
Star Cactus (Astrophytum asteria)
The star cactus, also known as sea urchin or sand dollar cactus, can be recognized by its circular body that is divided into eight slices. It has small white spots and white hairs all over it. It produces a yellow blossom in the spring. The star cactus is the perfect indoor plant because its diameter only reaches two to six inches.
Easter Cactus (Hatiora gaertneri)
Easter cactus, a native of Brazil, blooms in late winter or early spring. White, orange, and lavender are just a few of its bloom colors. The plant has a distinctive shape because of the way its spines are piled on top of one another.
Christmas Cactus (Schlumbergera bridgesii)
The Christmas cactus, which is frequently mistaken for the Thanksgiving cactus, blooms in the dead of winter. It boasts vivid red blossoms and is frequently given as a Christmas gift. The Christmas cactus thrives in average indoor settings. Don’t overwater plants because it will make their roots rot. Although this plant can thrive in low light conditions, its blossoms benefit from additional light.
Moon Cactus (Gymnocalycium mihanovichii)
The moon cactus, also referred to as the chin cactus, varies in size, shape, and color. The hibotan cactus is a well-known cultivar. Its South American origins can be traced to its vivid red, pink, yellow, and orange hues. On window sills that receive some light, these little plants flourish.