Naming of the Plant

• Genus: Mammillaria
  • The genus name "Mammillaria" is derived from the Latin word "mammilla," which means "little nipple," a reference to the tubercles that are characteristic of members of this genus.
• Species: compressa
  • The species name "compressa" is derived from the Latin word "compressus," meaning "compressed" or "flattened," describing the shape of this cactus as it often grows in a more flattened form compared to other species.

Taxonomy

• Family: Cactaceae
• Order: Caryophyllales
• Common Name: The species is commonly referred to as the “Compressed Mammillaria” due to its distinctive shape.

Origin of the Plant

• Geographic Distribution:
  • Mammillaria compressa is native to Mexico, predominantly found in the states of Puebla and Morelos. The plant thrives in arid, rocky environments typical of the region.
• Natural Habitat:
  • This cactus typically grows in dry, rocky substrates at elevations ranging from 1,000 to 2,500 meters (about 3,280 to 8,202 feet) above sea level. It often forms clusters or colonies, making it a visually striking addition to its natural landscape.
• Ecological Role:
  • In its native habitat, Mammillaria compressa plays a role in the local ecosystem, providing shelter for small animals and insects. The flowers attract pollinators, such as bees, contributing to the reproductive cycle of the plant and its surrounding flora.

Description

• Appearance: This cactus has a globular to cylindrical shape, can grow up to 10 cm (4 inches) tall, and features prominent tubercles arranged in spirals. It has a central spine and radial spines that are usually white or yellowish.
• Flowers: Produces small, tubular flowers that can range in color from pink to white, typically blooming during the spring and early summer.

Cultivation

• Soil: Prefer a well-draining cactus mix or a combination of sand, pumice, and potting soil to prevent root rot.
• Watering: Water thoroughly but allow the soil to dry out completely between waterings. During winter dormancy, reduce watering significantly.
• Temperature: Ideal temperatures range from 70°F to 85°F (21°C to 29°C) during the growing season, with cooler conditions in winter (around 50°F to 60°F or 10°C to 15°C).

Propagation

• Mammillaria compressa can be grown from seeds or offsets. Seeds should be sown in a well-draining substrate and kept warm and humid until germination.

• Conservation Status

  • IUCN Red List: Mammillaria compressa is currently not listed on the IUCN Red List of Threatened Species, indicating that it is not considered endangered or vulnerable at a global level. However, specific populations may still be at risk due to habitat loss and environmental changes.
  • Threats:
    • Habitat destruction is a significant threat to many cacti species, including Mammillaria compressa. Urbanization, agriculture, and over-collection for the ornamental plant trade can lead to a decline in wild populations.
    • Climate change can also impact its natural habitat, altering conditions that are crucial for the survival of this desert-dwelling species.