Bryophyllum gastonis-bonnieri (Raym.-Hamet & H.Perrier) Lauz.-March.
Donkey Ears
Short-lived biennial or perennial succulent native to Madagascar, currently recognised as Kalanchoe gastonis-bonnieri. Its leaves are notably large, up to 30–40 cm, oblong-lanceolate, grey-green with purple spots, producing adventitious plantlets on their margins. It is called 'donkey ears' for the shape and size of its leaves. Like other Bryophyllum species, it contains bufadienolide glycosides.
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Overview
| Category | Classification |
|---|---|
| Family | Crassulaceae |
| Genus | Bryophyllum |
| Growth Habit | Erect succulent herb with very large leaves; monocarpic or short-lived |
| Conservation Status | Not Evaluated (NE) |
| pH Target | 6.0–7.5 |
| Type | Well-drained sandy-loam |
Origin & Habitat
Requirements
Soil & Substrate
Type
Well-drained sandy-loam
groups Beneficial Associations
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Propagation Strategy
P
O
Once a year in young plants; when necessary in mature ones
Diluted succulent fertilizer, once a month in spring-summer
Uses & Applications
Precautions / Toxicity
Toxic to domestic animals and livestock; bufadienolide glycosides.
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Plant Health
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"Current accepted name: Kalanchoe gastonis-bonnieri Raym.-Hamet & H.Perrier. It is biennial or short-lived: dies after flowering, but leaves large numbers of propagules. Very striking due to the exceptional size of its leaves."
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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.