Catevala chloracantha (Haw.) Kuntze
Green-spined haworthia
Catevala chloracantha, synonym of Haworthia chloracantha Haw., is a rosulate succulent from the South African Cape recognizable by the green spines or marginal teeth ('chloro-acantha' = green spine) on the edge of its leaves. It has several recognized varieties and is prized in collections for its elegant spiny appearance.
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© Frank Vincentz / Wikimedia Commons
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Overview
| Category | Classification |
|---|---|
| Family | Asphodelaceae |
| Genus | Catevala |
| Growth Habit | Acaulescent or very short-stemmed rosette; produces basal offsets. |
| Conservation Status | Not threatened. Several varieties cultivated in Cape collections. |
| pH Target | 6.0 – 7.0 |
| Type | Porous mix: 50% cactus substrate + 30% perlite + 20% coarse sand. |
Origin & Habitat
Morphology
Triangular to lanceolate leaves 5–10 cm, medium to dark green, with translucent green marginal teeth (not white) and an acute apex with a green terminal spine.
ecoWhite tubular flowers with green nerves on scapes 20–40 cm. Summer flowering.
ecoAcaulescent or with very short stem; dense rosette at ground level.
ecoRobust fleshy roots with good water reserves.
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Requirements
Soil & Substrate
Type
Porous mix: 50% cactus substrate + 30% perlite + 20% coarse sand.
groups Beneficial Associations
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Propagation Strategy
- 1 Separate rooted offsets in spring using gloves (spines).
- 2 Let cut dry 2 days.
- 3 Plant in porous substrate and water after 7 days.
Use gloves when handling due to marginal spines.
Handling without gloves; green spines can irritate sensitive skin.
Every 3 years in spring.
Quarter-strength succulent fertilizer once in spring.
Uses & Applications
Precautions / Toxicity
Non-toxic to humans, dogs, and cats. Handle carefully due to spines.
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Plant Health
Mealybugs at the base of spines; check regularly.
Root rot in poorly drained substrates.
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"Catevala chloracantha corresponds to Haworthia chloracantha Haw. The green color of the marginal spines (not white as in most of the genus) is a unique diagnostic character; it is due to the presence of active chloroplasts in the marginal seta cells."
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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.