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Matucana tuberculata

Tuberculate Matucana

Overview

Matucana tuberculata is a small, highly decorative, and tuberous cactus species belonging to the family Cactaceae. It is highly sought after by succulent collectors for its vibrant orange-red flowers and dense spination 1.

Taxonomy and Naming

The species is categorized under the genus Matucana, named after the Peruvian town of Matucana. The specific epithet tuberculata refers to the prominent tubercles (bumps) covering its stem. It was officially described in the late 20th century 1.

Distribution and Habitat

This species is endemic to Peru, particularly found in the steep rocky slopes of the Marañón River valley in northern Peru. It typically thrives at elevations between 1,000 and 2,500 meters above sea level. Due to its restricted natural habitat, it is considered a vulnerable species 2.

Appearance

The stem is initially globose, later becoming cylindrical and clustering from the base. The epidermis ranges from bright green to grey-green, organized into prominent spiral tubercles rather than continuous ribs. Areoles bear stiff, yellowish-brown spines. The tubular, zygomorphic flowers are intensely orange-red and emerge near the apex 12.

Cultivation

It prefers bright, indirect sunlight or filtered sun. Watering should be done thoroughly during the active growing season (spring and summer) only after the substrate has completely dried. In winter, watering must be halted almost entirely. High-mineral, fast-draining soils are essential 3.

Common Cultivation Mistakes

The most prevalent issue is overwatering during the dormant winter phase, which quickly triggers root rot. Insufficient light leads to etiolation, causing the stems to stretch abnormally and lose their compact form 3.

References

  1. Anderson, E. F. (2001). The Cactus Family. Timber Press. ↩
  2. Hunt, D. (2006). The New Cactus Lexicon. DH Books. ↩
  3. Ritz, C. M., et al. (2007). Molecular Phylogeny of Matucana (Cactaceae). Systematic Botany. ↩
Light

Bright Indirect Light

Requires plenty of bright, indirect sunlight. Protect from intense, direct midday summer sun.

Watering

10-30 Days

Water thoroughly when soil dry out completely in summer. Keep dry in winter.

Soil

Well-draining, mineral-rich cactus soil with pumice and fine gravel

Mineral-rich, highly porous soil with a high proportion of pumice, perlite, and coarse sand.

Safety

Pet Friendly

Non-toxic, but the sharp spines can cause physical injury. Handle with care and keep away from pets.

Difficulty

Moderate

Moderate care level due to sensitive roots that are highly prone to moisture retention issues.

Native Habitat

Peru (Western South America)

Occurs naturally in the steep, rocky valleys of the Marañón River drainage in Northern Peru at high mountain elevations.

Frequently Asked Questions

How often should Matucana tuberculata be watered?
Water about every 10 days in summer, allowing the soil to dry completely. In winter, withhold water almost entirely.
What is the preferred soil mix for this cactus?
It prefers a mineral-rich soil mix with high drainage, consisting of pumice, lava rock, and coarse sand with low organic content.
Is Matucana tuberculata toxic to pets?
No, it is non-toxic, but its sharp spines pose a physical injury risk to curious pets.
Why is my cactus stretching and losing its shape?
This is usually caused by inadequate light (etiolation). Move your plant to a brighter spot with filtered sunlight.
How can I encourage my plant to bloom?
Provide a cool (around 5-10°C) and completely dry dormancy period in winter to stimulate spring budding.
How large does Matucana tuberculata grow?
It grows slowly. Single stems reach 10-15 cm in height, but it will offset from the base over time to form attractive clumps.
Can it tolerate direct sunlight?
While it enjoys high light, in pot culture, filtered sunlight is preferred during the hottest summer hours to prevent sunburn.
What type of pot should I use?
Clay or terracotta pots with drainage holes are ideal as they allow the soil medium to dry out more rapidly.
How is it propagated?
It can be propagated in spring by carefully detaching offsets, letting them dry, and rooting them, or via seeds.
Can I leave it on the balcony in winter?
It can tolerate temperatures down to 5°C if kept completely dry, but must be brought indoors where freezing temperatures occur.