Caralluma rosengrenii Vierh.
Arabian Caralluma
Caralluma rosengrenii is a succulent of the Arabian Peninsula described by Vierhapper. It grows on the arid stony slopes of Yemen and Oman, often in limestone rock crevices, where extreme temperatures and scarce rainfall shape its compact morphology.
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Overview
| Category | Classification |
|---|---|
| Family | Apocynaceae |
| Genus | Caralluma |
| Growth Habit | Low-growing caespitose succulent. |
| Conservation Status | Not Evaluated (NE) by the IUCN. |
| pH Target | 6.8–8.0 |
| Type | Calcareous gravelly, very well drained. |
Origin & Habitat
Requirements
Soil & Substrate
Type
Calcareous gravelly, very well drained.
groups Beneficial Associations
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Propagation Strategy
S
W
Every 3–4 years; the species prefers to be slightly pot-bound.
Minimal fertilisation; one application of very diluted mineral fertilizer in spring.
Uses & Applications
Precautions / Toxicity
Potentially toxic if ingested; keep away from pets.
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"Endemic to the arid coastal strip of southern Arabia; rarely available in the specialist trade."
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Scientific Integrity
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Sources
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Discussion
Disclaimer
This species record is provided for educational and informational purposes only. Jardín Roca Negra does not guarantee the accuracy or completeness of the data. Content is community-curated and may be subject to revision; it should not replace advice from a qualified botanist. This species may be toxic, invasive, or subject to legal restrictions — verify before handling or cultivating. Jardín Roca Negra accepts no liability for any harm arising from reliance on this information. Images are reproduced under Creative Commons or equivalent free licenses; credits are noted below each image.