Angolluma decaisneana (Lem.) L.E.Newton
Decaisne's angolluma
Stapeliad succulent from the Arabian Peninsula with 4–6-angled stems and star-shaped dark purple flowers. One of the few species of the genus adapted to the arid climates of Arabia and the African Sahel. Previously classified in Caralluma and later in Orbea.
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© Marco Schmidt, CC BY-SA 3.0
CC BY-SA 3.0
Overview
| Category | Classification |
|---|---|
| Family | Apocynaceae |
| Genus | Angolluma |
| Growth Habit | Erect to semi-creeping, stems 10–25 cm, blue-green with dark mottling |
| Conservation Status | Least Concern (IUCN) |
| pH Target | 6.5–7.5 |
| Type | Sandy, very well-drained, low in nutrients |
Origin & Habitat
Morphology
4–6 angled, blue-green with purple spots, small marginal teeth, 1–2 cm diameter
ecoStar-shaped, dark purple almost black, granular-papillose surface, 1.5–2.5 cm diameter, intense carrion smell
ecoShallow fibrous with thickening under water stress
ecoCompact cushions; in flower the dark blooms contrast strongly with pale stems
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Requirements
Soil & Substrate
Type
Sandy, very well-drained, low in nutrients
groups Beneficial Associations
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Propagation Strategy
K
W
Every 2–3 years in spring
Very diluted cactus fertilizer, once in May and once in July
Uses & Applications
Precautions / Toxicity
Some stapeliads contain cardiac glycosides; keep away from pets
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Plant Health
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"Originally described as Caralluma decaisneana by Lemaire; reclassified in Orbea and confirmed in Angolluma by L.E. Newton. Also naturalized as a weed in parts of the Sahel (Burkina Faso, Senegal)."
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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.