Boucerosia crenulata (Wall.) Wight & Arn.
Crenulate Caralluma
An erect or creeping succulent with toothed quadrangular stems, endemic to arid and semi-arid regions of the Indian Peninsula. Its flowers are distinctive for petals with crenulate (finely scalloped) margins, coloured from yellow-green to dark purple with transverse banding. A synonym of Caralluma crenulata. The plant grows in rock crevices, stony hillsides, and rural roadsides in India.
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© Haneesh K M (iNaturalist)
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Overview
| Category | Classification |
|---|---|
| Family | Apocynaceae |
| Genus | Boucerosia |
| Growth Habit | Erect to creeping succulent; quadrangular stems 15–40 cm tall with angled teeth |
| Conservation Status | Least Concern (LC); relatively common within its native distribution area |
| pH Target | 6.0–7.5 |
| Type | Rocky-sandy, low-fertility soil, slightly acidic to neutral pH |
Origin & Habitat
Requirements
Soil & Substrate
Type
Rocky-sandy, low-fertility soil, slightly acidic to neutral pH
groups Beneficial Associations
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Propagation Strategy
U
O
Every 2–3 years
50% diluted liquid cactus fertiliser, once a month in spring-summer
Uses & Applications
Precautions / Toxicity
Non-toxic to humans at usual doses; glycosides present may be mildly toxic to small mammals at high doses
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Plant Health
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"Originally described by Nathaniel Wallich as Caralluma crenulata and transferred to Boucerosia by Wight & Arnott. Modern nomenclature tends to keep it within Caralluma sensu stricto. Populations from Kerala and Tamil Nadu show greater variability in flower colouration."
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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.