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Euphorbia Cap-Saintemariensis (Euphorbia cap-saintemariensis)

Source: Wikimedia Commons

Euphorbia Cap-Saintemariensis

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Euphorbia cap-saintemariensis

A rare Euphorbia from southern Madagascar with wavy leaves and flat caudex.

Growing Difficulty
Advanced
Temperature
10〜35℃
Lifespan
20+ years
Size
5-15cm

About

Euphorbia cap-saintemariensis grows on limestone terrain at Cap Sainte-Marie, the southernmost tip of Madagascar, in a very restricted range. Its most distinctive feature is the uniquely wavy, undulating leaf margins that distinguish it from related species. A flat to spherical caudex supports multiple stems bearing these characteristic leaves. Flowers are small and inconspicuous. Damaged tissue exudes toxic white latex. Growth is very slow. Both the restricted natural range and slow growth contribute to its rarity in cultivation. Full sun to bright indirect light with extremely porous soil is appropriate. Its unusual leaf form and extreme rarity make it one of the most prized Malagasy euphorbias among specialists.

Lifespan of the Euphorbia Cap-Saintemariensis

The Euphorbia Cap-Saintemariensis lives 20+ years.

Size of the Euphorbia Cap-Saintemariensis

The Euphorbia Cap-Saintemariensis grows to 5-15cm.

Temperature & humidity for the Euphorbia Cap-Saintemariensis

Restrained watering and complete winter drought above 10°C are essential.

Basic Info

Origin

Cap Sainte-Marie, southernmost Madagascar

Lifespan

20+ years

Size

5-15cm

Temperature

10〜35℃

Growing Tips

Light & Placement

It adapts from bright direct sun to indirect light. Keep it in a bright, airy spot so the wavy leaves get good light.

Watering

Water sparingly as a rule, only after the soil is completely dry. Withhold water in winter and let the caudex rest dry.

Temperature & Overwintering

Cold tolerance is low; overwinter indoors above 10°C. Keep it by a warm, bright window away from cold drafts.

Soil & Repotting

Use an extremely fast-draining mix. Native to limestone areas and very slow-growing, it needs repotting only when root-bound.

Pests & Cautions

Cut surfaces exude a toxic white latex. Wear gloves when handling and keep the latex off skin and eyes.

CaudexEuphorbiaWavy LeafRare

Euphorbia Cap-Saintemariensis FAQ

QWhat is the growing difficulty level for Euphorbia Cap-Saintemariensis?
A

Advanced. A variety suitable for advanced growers. Requires advanced cultivation techniques and specialized equipment, with careful environmental adjustments needed.

QWhat is the lifespan of Euphorbia Cap-Saintemariensis?
A

The average lifespan of Euphorbia Cap-Saintemariensis is 20+ years. With proper cultivation environment and nutrient management, you can keep it healthy for a long time.

QHow large does Euphorbia Cap-Saintemariensis get?
A

The mature size of Euphorbia Cap-Saintemariensis is 5-15cm. This may vary slightly depending on cultivation environment and individual differences.

QWhat is the typical price for Euphorbia Cap-Saintemariensis?
A

The price of Euphorbia Cap-Saintemariensis varies significantly by variety, characteristics, size, and lineage. Please check GrowerDirect's price guide for the latest market information.

Last updated: July 5, 2026

References & Sources

Edited & verified by: GrowerDirect Editorial Team

The classifications, regulations, and growing data on this page are created and verified based on the primary information database below.

Primary sources

Taxonomy & Authority

Accepted name: Euphorbia cap-saintemariensis Rauh

Synonyms: Euphorbia decaryi var. cap-saintemariensis (Rauh) Cremers

Authority databases: GBIF · POWO

Nomenclature follows global taxonomic authority databases.

Regulations & Conservation Status

CITES Appendix I

Madagascar succulent Euphorbia is listed as CITES Appendix I.

Sources: CITES Appendix I species list / CITES Appendices (valid from 2023)

Regulations may change. Always verify the latest information with the relevant authorities.

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