Caralluma eremastrum O.Schwartz
Arabian Desert Caralluma
An Arabian succulent described by O. Schwartz, a specialist in the flora of Arabia. The epithet eremastrum alludes to its adaptation to the extreme desert environment (erema = desert in Greek). Grows in arid calcareous and rocky soils of Saudi Arabia and Yemen. Like the rest of the genus, its stems are quadrangular with teeth and its flowers emit a fetid odour to attract dipteran pollinators.
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Overview
| Category | Classification |
|---|---|
| Family | Apocynaceae |
| Genus | Caralluma |
| Growth Habit | Decumbent or erect succulent adapted to hyperarid deserts |
| Conservation Status | Not formally assessed; habitat under pressure from development in Arabia |
| pH Target | 7.5–9.0 |
| Type | Arid calcareous, alkaline, very nutrient-poor soil |
Origin & Habitat
Requirements
Soil & Substrate
Type
Arid calcareous, alkaline, very nutrient-poor soil
groups Beneficial Associations
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Propagation Strategy
R
A
Every 3–4 years
Once a year in summer, very diluted mineral fertiliser
Uses & Applications
Precautions / Toxicity
No known toxicity
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"O. Schwartz described numerous plants of the Yemeni and Arabian flora in the mid-20th century. This species is representative of the hyperarid Caralluma of the Arabian Peninsula, adapted to some of the most extreme conditions in the genus."
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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.