Caralluma piaranthoides Oberm.
Piaranthus-like Caralluma
A South African species described by Obermeyer, whose name reflects its notable morphological resemblance to the genus 'Piaranthus'. Inhabits karoo and semi-arid biomes of southern Africa, growing in rock crevices and poor stony soils. Stems are low, very branched at the base, quadrangular in section, greyish-green. Flowers are small but attractive, with flat petals of contrasting colours. Its resemblance to Piaranthus has caused historical taxonomic confusion; modern molecular studies confirm its placement in Caralluma s.l.
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Overview
| Category | Classification |
|---|---|
| Family | Apocynaceae |
| Genus | Caralluma |
| Growth Habit | Low-growing, heavily branched herbaceous succulent. |
| Conservation Status | Data Deficient; rare in collections. |
| pH Target | 6.5–7.5 |
| Type | Gravelly, sandy, karoo-type. |
Origin & Habitat
Requirements
Soil & Substrate
Type
Gravelly, sandy, karoo-type.
groups Beneficial Associations
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Propagation Strategy
I
W
Every 3 years.
Once in spring with highly diluted succulent fertilizer.
Uses & Applications
Precautions / Toxicity
No studies; standard caution.
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"The specific epithet alludes to its resemblance to Piaranthus; molecular phylogenetic studies place it firmly within Caralluma s.l., definitively separating it from Piaranthus."
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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.