Catevala viscosa (L.) Kuntze
Sticky haworthia
Succulent with erect or decumbent stem covered in triangular leaves arranged in three dense rows giving a very distinctive three-dimensional appearance. Leaf surface may be slightly sticky ('viscosa'). Currently reclassified as Haworthiopsis viscosa, native to the Western Cape and South African Karoo.
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© Stan Shebs / Amada44 / S Molteno, Wikimedia Commons
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Overview
| Category | Classification |
|---|---|
| Family | Asphodelaceae |
| Genus | Catevala |
| Growth Habit | Caulescent; erect to decumbent stem, rarely branched, covered in leaves in 3 rows. |
| Conservation Status | Least Concern |
| pH Target | 6.0–7.5 |
| Type | Mineral-sandy, very well drained |
Origin & Habitat
Morphology
Triangular, imbricate in 3 well-defined rows, dark green to brownish, with white tubercles on both sides. Surface slightly rough or sticky.
ecoErect, may reach 10–20 cm height, bearing leaves to the base.
ecoSimple raceme on long scape; bilobate white flowers with greenish lines.
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Requirements
Soil & Substrate
Type
Mineral-sandy, very well drained
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Propagation Strategy
- 1 Separate lateral offset
- 2 Dry cut 1–2 days
- 3 Plant in dry mineral substrate
- 4 Water after 7–10 days
Tolerates more sun than other haworthias
Overwatering rotting the stem
Every 2–3 years
Once a month in spring with cactus fertilizer
Uses & Applications
Precautions / Toxicity
Non-toxic.
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Plant Health
Base rot in waterlogged soils
Mealybug: treat with alcohol or systemic insecticide
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"Synonym of Haworthia viscosa (L.) Haw., currently recognised as Haworthiopsis viscosa (L.) G.D.Rowley. One of the haworthias described by Linnaeus. The epithet 'viscosa' alludes to the sticky leaf texture observed in some specimens."
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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.