Graptopetalum "La Mexicana"
Common Name: La Mexicana (English: The Mexican)
Scientific Name: Graptopetalum "La Mexicana"
Native to the Mexican states of Hidalgo, Tamaulipas
Kingdom: Plantae
Phylum: Tracheophyta
Class: Magnoliopsida
Order: Saxifragales
Family: Crassulaceae
Genus: Graptopetalum
Species: "La Mexicana"
Cellular respiration is like a plant's way of breathing. Just as us humans need to eat food to get energy, plants use a process called photosynthesis to make food (glucose) from sunlight, carbon dioxide, and water. Then, inside tiny structures called mitochondria, the plant breaks down this food to release energy, just like how we digest our food to get energy. This energy helps the plant grow, reproduce, and stay alive. As a result of this process, plants also release oxygen into the air, which is what we breathe.
It forms rosettes up to 1.5-2.5 m in diameter. Its leaves are pale green, lanceolate, flexible and soft. The margin has very flexible and small teeth. The inflorescence measures 1.5-2-5 m in height, generally purple.
Stem: The main support structure that holds the plant upright. In Graptopetalum, stems are often short and may be hidden by the leaves.
Leaves: Thick, fleshy, and arranged in a rosette pattern. They store water and nutrients. The color can vary from green to bluish-green, and sometimes pink or purplish hues.
Rosette: The circular arrangement of leaves.
Habitat:
Habitat.- Graptopetalum irmasoniae is endemic to the state of Oaxaca, Mexico, specifically in the municipality of San Juan Teita. It grows along rocky slopes with gypsum soils. The plant is found in an altitudinal range of 1200-1800 meters. It is part of the xerophytic scrub (matorral xerófilo) with other plants such as Agave gypsicola, Calochortus multicolor, Cephalocereus parvispinus, Echeveria macdougallii, Mixtecalia teitaensis, Pinguicula heterophylla, Selaginella lepidophylla, and Xochiquetzallia magnifolia.
Due to its limited distribution and extremely low number of reproductive individuals and the risk of intense collection and illegal trade, Graptopetalum is Critically Endangered.
Graptopetalum "La Mexicana" helps in dry places because they store water in their leaves. They grow in rocky areas where it's hard for other plants to live. They can stop the soil from getting washed away by wind or rain, and they make good homes for small bugs. Even though their flowers are tiny, they still attract bees. In conclusion they are important for keeping the environment balanced in their habitats.
Food Web and Distribuiton Map
The plant Graptopetalum "La Mexicana" is currently in a critically endangered because:
The plant is endemic to the state of Oaxaca and is only known from a small area near the town of San Juan Teita. Its area of occupancy (AOO) is calculated to be 4 km2.
The plant grows on gypsum outcrops, which is a highly specialized and fragile habitat. This habitat is very vulnerable to desertification or climate change..
The plant is at risk of intense collection and poaching for illegal trade, as is the case with many succulent species.
Its sexual reproduction occurs in winter.
Some protection measures could be:
We could protect their natural habitats by creating protected areas where human activities are limited or regulated.
We could create laws and regulations to control over collection and illegal trade.
We could raise awareness about the importance of the species and the threats that it is facing.
We can use reintroduction programs. In these they breed the species in captivity and reintroduce them into their natural habitats.
We could do continuous research and monitoring to understand the species better and check how well our conservation measures have worked.
Its economical value comes as a decorative and asthetic piece to people. They are also easy to breed and maintain. They have air-purifying qualities. The plant is believed to represent strength. Also in case people interested in buying them have any kids or pets, these plants are non-toxic.
While our plant's known information is fairly recent, we can assume some things. We know that since Spaniards conquered Mexico they had a great interest in our biodiversity, specifically plants. Throughout colonial Mexico we know that many of these beautiful plants were shipped to Europe in order to make money. Out of these plants that were shipped we believe the Graptopetalum "La Mexicana" was one of them.
Specific indigenous uses for "La Mexicana" are not known. Although the plant's family, Crassulaceae, is known for its use in medicine and decoration by ethnic groups in Mexico.
This plant is not as popular internationally as it is in Mexico. In Mexico this plant is becoming very popular due to its beauty and how easy it is to keep it alive
This plant is unique in our green roof because of many factors.
This plant possesses rare beauty that many plants just simply do not have.
It is very easy it is to take care of them.
They are able to store water in their leaves.
They have protective coating that help them protect them from sunlight and water loss.
Propagation is simple either through seeds or cuttings, making it easy to multiply the plants.
Adaptations and Evolution
Special Traits
Water Storage
The plant is able to store water inside of it. This trait is very important for its survival because where this plant lives water is scarce.
Colors
Its leaves are pink or greenish-pink and they are in a rosette pattern. Its colors are visually appealing but also play a role in its survival by reflecting harsh sunlight and reducing water loss.
Protective Coating
The leaves are covered by a protective layer almost like wax. It helps them protect themselves from the sun. This coating allows the plant to thrive even in full sunlight.
Compact Growth
It grows relatively compact, reaching heights of 15 to 20 centimeters. Its stems can extend. This allows it to conserve resources and survive in limited spaces.
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Close Relatives
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There was a study made to analyze Graptopetalum. The study showed these recent findings:
Interestingly, the study showed that Graptopetalum is not a monophyletic group. This means that not all species under the genus share a common ancestor exclusive to them. Instead, species from other genera, such as Tacitus bellus, Cremnophila, Sedum, and Echeveria, are interspersed among Graptopetalum species. This basically means that geographical distribution cuased the grouping of these species.
Bibliography:
Ruiz, Mariana. “Planta Fantasma: La Suculenta Mexicana Que Necesitas En Casa.” Architectural Digest, Architectural Digest, 10 Sept. 2021, www.admagazine.com/sustentabilidad/planta-fantasma-la-suculenta-mexicana-20210910-9012-articulos.
“Madreperla (Graptopetalum Paraguayense).” iNaturalist Mexico, mexico.inaturalist.org/taxa/273763-Graptopetalum-paraguayense. Accessed 27 May 2024.