Synonyms:

Dolichothele longimamma var. monstrosa is also known as Mammillaria longimamma var. monstrosa and Mammillaria longimamma f. monstrosa.

Habitat:

Dolichothele longimamma f. mostruosa is native to the semi-desert regions of central Mexico, specifically found in the states of Hidalgo, Querétaro, and San Luis Potosí. It thrives in rocky, well-drained soils, often growing in crevices and on slopes where water runoff is quick, preventing waterlogging. The climate in these regions is characterized by warm temperatures and relatively low rainfall, with distinct dry and wet seasons. These conditions contribute to the plant’s ability to tolerate drought and adapt to arid environments. The natural habitat of Dolichothele longimamma f. mostruosa provides ample sunlight, which is crucial for its growth and flowering.

Description:

Dolichothele longimamma f. mostruosa is a unique and intriguing cactus belonging to the Cactaceae family. This form exhibits abnormal growth patterns that differ from the typical species, giving it a distinctive appearance. The plant forms a cluster of elongated, cylindrical stems that can grow up to 30 centimeters in height and about 5 centimeters in diameter. These stems are covered with numerous tubercles, which are modified leaves that resemble small, rounded bumps. The tubercles are arranged spirally along the stems, and each one ends in a cluster of spines. The spines are usually white to yellowish and can be up to 2 centimeters long. Unlike the typical Dolichothele longimamma, which has relatively regular and uniform growth, the monstrose form displays irregular and twisted growth, creating an almost sculptural look. Flowers of Dolichothele longimamma f. mostruosa are a standout feature, typically blooming in late spring to early summer. The flowers are large, funnel-shaped, and bright yellow, measuring up to 5 centimeters in diameter. They emerge from the tubercles near the top of the stems and can last for several days. The blooming of these vibrant flowers is a spectacular sight, especially when the plant is in full bloom with multiple flowers open at once.

Cultivation:

Cultivating Dolichothele longimamma f. mostruosa can be an enjoyable endeavor for cactus enthusiasts. Use a well-draining cactus mix, which can be enhanced with additional sand or perlite to improve drainage. This prevents root rot, a common issue in poorly draining soils. Provide ample sunlight, ideally full sun to partial shade. While the plant thrives in bright light, it should be protected from intense midday sun, which can cause sunburn, especially in hotter climates. Watering should be moderate, allowing the soil to dry out completely between waterings. During the growing season (spring and summer), water thoroughly but infrequently. Reduce watering significantly during the winter months when the plant is dormant. Dolichothele longimamma f. mostruosa prefers warm temperatures, typical of its native habitat. It can tolerate temperatures as low as 5°C but should be protected from frost. If grown in colder climates, it is best kept indoors or in a greenhouse during the winter. Feed the plant with a diluted, balanced cactus fertilizer during the growing season. Fertilize sparingly, as over-fertilization can harm the plant. This cactus is relatively pest-resistant but can occasionally be affected by mealybugs and spider mites. Regularly inspect the plant and use appropriate treatments, such as insecticidal soap or neem oil, if pests are detected. Repotting should be done every two to three years or when the plant has outgrown its pot. Use a fresh cactus mix and a slightly larger pot to accommodate the growing root system. Spring is the best time for repotting.

Propagation:

Propagation of Dolichothele longimamma f. mostruosa can be achieved through both seeds and cuttings. Seeds should be sown in a well-draining soil mix and kept moist until germination. The seedlings are delicate and require careful handling. For cuttings, select healthy stems and allow the cut ends to dry and callous for several days before planting in a sandy soil mix. Keep the cuttings in a warm, bright location and water sparingly until roots develop and new growth is visible. This method helps preserve the unique monstrose characteristics.

Curiosity:

Dolichothele longimamma f. mostruosa is notable for its unusual, distorted growth, which makes it a prized plant among collectors. The term “mostruosa” refers to its monstrose growth form, characterized by irregular, abnormal shapes that deviate from the standard species. This cactus is often considered a living sculpture due to its intriguing and unpredictable growth patterns. Additionally, the plant’s ability to thrive in harsh, arid conditions is a testament to the resilience and adaptability of cacti. The bright yellow flowers add a striking contrast to the plant’s green stems, making it a visually captivating addition to any cactus collection.

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