Caralluma hesperidum Maire
Hesperian Caralluma
A succulent described by René Maire from specimens collected on the Atlantic coast of Morocco. It is closely related to Caralluma commutata and some authors treat it as a subspecies under the name Caralluma commutata subsp. hesperidum. Its stems are quadrangular, greyish-green with reddish tints, and the flowers show the five typical triangular lobes of the genus, brownish-yellow with purple mottling. Grows on rocky slopes and xerophilous scrublands of the Atlantic flanks of the Anti-Atlas.
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© Johnleung2000s, via Wikimedia Commons
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Overview
| Category | Classification |
|---|---|
| Family | Apocynaceae |
| Genus | Caralluma |
| Growth Habit | Clump-forming succulent with erect angled stems, up to 20–30 cm tall |
| Conservation Status | Not formally assessed by IUCN; distribution restricted to south-western Morocco |
| pH Target | 7.0–8.2 |
| Type | Calcareous or sandy rocky soil, with excellent drainage and low organic matter content |
Origin & Habitat
Requirements
Soil & Substrate
Type
Calcareous or sandy rocky soil, with excellent drainage and low organic matter content
groups Beneficial Associations
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Propagation Strategy
C
E
Every 2–3 years in spring, when active growth resumes
Diluted mineral cactus fertiliser, once in spring and once in early summer
Uses & Applications
Precautions / Toxicity
No documented toxicity; flowers emit a fetid odour to attract flies, which can be unpleasant indoors
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"Described by Maire in the early 20th century. Its relationship with Caralluma commutata is debated: some modern treatments reduce it to a subspecies (C. commutata subsp. hesperidum), while other authors maintain it as an independent species endemic to south-western Morocco. Molecular revision is needed to resolve the question."
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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.