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Description
Coryphantha Robustispina, also known as the robust nipple cactus, is a small, slow-growing cactus species that belongs to the Cactaceae family. It is a native of the Chihuahuan Desert, particularly in the Mexican states of Chihuahua and Coahuila. This cactus species forms a solitary stem that usually grows up to 10 cm tall and 10 to 15 cm in diameter.
Taxonomic Information
| Domain | Eukaryota |
| Kingdom | Plantae |
| Phylum | Tracheophyta |
| Class | Magnoliopsida |
| Order | Caryophyllales |
| Family | Cactaceae |
| Genus | Coryphantha |
Appearance
The Coryphantha Robustispina cactus has a spherical or cylindrical shape, with a flat-topped crown. Its stem has between 13 and 24 prominent ribs that are covered in numerous white or yellowish spines that are 1-2 cm long. The plant produces large, funnel-shaped flowers that are usually yellow or pink, and they bloom in the summer. The fruit of the Coryphantha Robustispina is a cylindrical berry that is dry and woody.
Care Guide
The Coryphantha Robustispina is a hardy plant that is relatively easy to care for. Here are some care tips:
- Water: Water the plant moderately during its growing season (spring to summer). Allow the soil to dry out between watering to prevent root rot.
- Fertilization: Feed the plant once a month during the growing season with a cactus-specific fertilizer.
- Soil: Use a well-draining soil mix that is specifically designed for cacti and succulents.
- Sunlight: Place the Coryphantha Robustispina in a spot that receives plenty of bright, direct sunlight.
- Hardiness Zones: This plant is hardy in USDA zones 8a to 11b.
Common Pests & Diseases
The Coryphantha Robustispina is generally resistant to pests and diseases. However, it can be susceptible to mealybugs, scale insects, spider mites, and root rot if overwatered. To prevent these issues, ensure that the plant is grown in well-draining soil and avoid overwatering.
Habitat
The Coryphantha Robustispina is native to the Chihuahuan Desert, which is located in Northern Mexico and the southwestern United States. This desert is characterized by its harsh, arid climate, with long periods of drought and extreme temperature fluctuations between day and night.
Question and Answer
Q: Can the Coryphantha Robustispina be grown indoors?
A: Yes, this cactus can be grown indoors as long as it receives plenty of bright, direct sunlight.
Q: How often should I water my Coryphantha Robustispina?
A: Water the plant moderately during its growing season (spring to summer). Allow the soil to dry out between watering to prevent root rot.
Q: Can the Coryphantha Robustispina be propagated from cuttings?
A: Yes, this cactus can be propagated from stem cuttings. Allow the cuttings to dry out for a few days before planting them in well-draining soil.
Q: What is the average lifespan of the Coryphantha Robustispina?
A: With proper care, this cactus can live for several decades.
Related Plants
- Coryphantha Elephantidens
- Coryphantha Macromeris
- Coryphantha Ramillosa
- Coryphantha Sneedii
References
- “Coryphantha Robustispina.” World of Succulents. Accessed August 2021. https://worldofsucculents.com/coryphantha-robustispina-robust-nipple-cactus/.
- “Coryphantha Robustispina.” Cactus Art Nursery. Accessed August 2021. https://cactus-art.biz/schede/CORYPHANTHA/Coryphantha_robustispina/Coryphantha_robustispina/Coryphantha_robustispina.htm.
- “Coryphantha Robustispina.” Desert-Tropicals. Accessed August 2021. https://www.desert-tropicals.com/Plants/Cactaceae/Coryphantha_robustispina.html.
