Mammillaria bucareliensis 'erusamu': The Erusamu Cactus

Origin of Name

The genus name "Mammillaria" is derived from the Latin word "mammilla," meaning "nipple," which refers to the small, nipple-like tubercles that are characteristic of this group of cacti. The species name "bucareliensis" refers to the locality of Bucareli, a place in Mexico where this species was first identified. The cultivar name “erusamu” is derived from a local term or cultural reference, often associated with the specific characteristics or origins of this variant within the species.

Origin of Plant

Mammillaria bucareliensis 'erusamu' is native to Mexico, particularly found in the semi-arid regions of Oaxaca. This plant typically grows in rocky and well-drained soils, where it thrives in conditions characterized by ample sunlight and low humidity. It has adapted to the unique environmental factors of its native habitat, which contributes to its resilience and growth patterns.

Description

Mammillaria bucareliensis 'erusamu' is a small, globular cactus that typically reaches a height of about 10 to 15 centimeters (4 to 6 inches) and a diameter of 5 to 10 centimeters (2 to 4 inches). The cactus is covered in numerous small tubercles, with white to yellow spines that create a textured, fluffy appearance. This cultivar is particularly notable for its stunning pink to purple flowers, which bloom in a circular fashion around the crown of the cactus, typically occurring in spring and summer. The blooms can add a colorful and captivating element to the plant, making it a prized specimen among collectors.

Conservation Status

While Mammillaria bucareliensis 'erusamu' is not currently classified as endangered, its populations may be threatened by habitat loss due to agricultural expansion and land development. Conservation measures that focus on protecting its natural habitat and promoting responsible cultivation are essential for maintaining this beautiful cactus in the wild.

Care

Caring for Mammillaria bucareliensis 'erusamu' involves replicating its native habitat conditions. Use a well-draining cactus mix, ideally composed of materials like sand, perlite, or pumice to prevent root rot. Position the cactus in a location that receives bright, indirect sunlight, though it can also tolerate some direct sun exposure. Water moderately during the growing season (spring and summer), allowing the soil to dry out completely between waterings. In the winter, reduce watering significantly, as the cactus enters a dormant phase and requires much less moisture. Fertilize sparingly during the active growing season with a diluted cactus fertilizer to promote growth and flowering. Regularly check for pests such as mealybugs and aphids to ensure your Mammillaria bucareliensis 'erusamu' remains healthy and vibrant, making it an attractive addition to any succulent collection.