Caralluma hottentotorum
Hottentot's Caralluma
A southern African succulent named in reference to the Khoikhoi people (historically called Hottentots). The species shows considerable morphological variability, with four varieties recognised: var. hottentotorum (the nominal), var. major (larger stems and flowers), var. minor (smaller habit) and var. tubata (flowers with a more pronounced tube). All share quadrangular stems green with brown patches and five-lobed flowers with the characteristic fetid odour. Grows in arid scrublands and rocky areas of the Karoo region and adjacent zones.
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Overview
| Category | Classification |
|---|---|
| Family | Apocynaceae |
| Genus | Caralluma |
| Growth Habit | Clump-forming succulent with erect to semi-decumbent stems; habit variable depending on variety |
| Conservation Status | Not formally assessed by IUCN; var. minor may warrant greater concern due to its smaller range |
| pH Target | 6.8–8.0 |
| Type | Karoo soil: sandy-clay with gravel, alkaline to neutral; very good surface drainage |
Origin & Habitat
Requirements
Soil & Substrate
Type
Karoo soil: sandy-clay with gravel, alkaline to neutral; very good surface drainage
groups Beneficial Associations
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Propagation Strategy
C
W
Every 2–3 years; repot in spring taking advantage of the start of the rainy season
Diluted mineral fertiliser for succulents, twice a year: early spring and mid-summer
Uses & Applications
Precautions / Toxicity
No documented toxicity for humans or pets; flowers with fetid odour
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"The circumscription of the four varieties (hottentotorum, major, minor, tubata) follows traditional treatments of the genus. Some modern authors reduce them to synonymy with the type species. Var. tubata is especially striking for its floral morphology with elongated tube."
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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.