Home → Botanical Library → Euphorbia Collection → Euphorbia flanaganii
Plant ID
Plant ID No.: GD-EUP-003-0018
Scientific Name: Euphorbia flanaganii N.E.Br.
Family: Euphorbiaceae
Genus: Euphorbia
Identification: Euphorbia flanaganii — high confidence from photograph
Common Name(s)
- Medusa’s Head Euphorbia
- Medusa Plant
- Medusa Spurge
- Transkei Medusa’s Head
- Flanagan’s Euphorbia
Plant Photograph
Figure 1. Euphorbia flanaganii N.E.Br.
Photo Caption:
A cultivated Euphorbia flanaganii displaying numerous slender, green, snake-like branches radiating from its central crown, with fresh leafy growth concentrated toward the branch tips.
Photography: John Niño G. Ewa (@_____.5am)
Plant Description
Euphorbia flanaganii is a distinctive dwarf succulent with a swollen, partly underground stem and numerous slender branches spreading outward from the central crown. Its unusual architecture gives the plant its characteristic Medusa’s Head appearance. The species is native to South Africa. PlantZAfrica
The branches are cylindrical, green and tuberculate, with tiny linear leaves appearing mainly toward the growing tips. Older portions of the branches become increasingly bare as the leaves are shed. RHS
Basic Information
| Feature | Information |
|---|---|
| Scientific Name | Euphorbia flanaganii N.E.Br. |
| Family | Euphorbiaceae |
| Genus | Euphorbia |
| Plant Type | Dwarf succulent |
| Growth Form | Caudiciform, spreading |
| Native Range | South Africa |
| Stem | Swollen central caudex with radiating branches |
| Branches | Slender, cylindrical and tuberculate |
| Leaves | Small, linear and deciduous |
| Flowers | Yellow to yellow-green cyathia |
| Special Feature | Medusa-like radial branching |
Plant Overview
The feature that most clearly distinguishes this specimen is its very slender, radially spreading branches arising from a compact central crown. Unlike larger Medusa-head Euphorbias, E. flanaganii remains a small plant, with branches forming a low spreading structure. Biodiversity Advisor
The species is particularly recognizable when new leaves appear at the branch tips while the older basal portions remain largely leafless.
Botanical Description
Genus-level characteristics such as the general structure of Euphorbia, cyathium anatomy, milky latex, general cultivation, propagation, pests and diseases are covered on the Euphorbia Genus Page and are not repeated here.
Growth Habit
A very small, low-growing succulent with a partly underground swollen stem (caudex) and numerous branches arranged around its crown. The branches spread outward, producing the characteristic Medusa-like form. Biodiversity Advisor
Mature Size
Plants are generally about 10–15 cm high, while the spreading branches can form a plant approximately 20 cm or more across under cultivation. World Flora Online
Stem
The central stem is thickened and largely concealed below or close to the soil surface. Its upper portion forms a flattened, tuberculate crown from which the branches arise. World Flora Online
Branches
The branches are slender, cylindrical and green, radiating from the central crown. They may extend approximately 20 cm in cultivated specimens and are covered with small tubercles. RHS
Leaves
Leaves are very small, narrow and linear, occurring primarily toward actively growing branch tips. They are deciduous and are eventually lost from older sections of the branches. World Flora Online
Spines
Absent. The species is spineless; the small projections visible along the branches are tubercles rather than true spines. World Flora Online
Roots
The swollen central stem is associated with a largely subterranean structure adapted to the plant’s dry native environment.
Flowers
The flowers are produced as cyathia, the specialized inflorescences characteristic of Euphorbia. In E. flanaganii, the cyathia have yellow to yellow-green glands and are produced from the central portion of the plant. Flowering is recorded principally from approximately October to April in its native range. World Flora Online
Fruits
The fruit is a small capsule, approximately 4–6 mm in diameter; in this species the mature capsule is described as glabrous. World Flora Online
Seeds
Seeds develop within the three-lobed capsule following successful pollination. Individual seed characteristics are not documented from the Green Desert specimen.
Native Habitat
Geographic Distribution
Euphorbia flanaganii is endemic to South Africa, occurring principally in the Eastern Cape and extending into parts of the south coast of KwaZulu-Natal. Biodiversity Advisor
Natural Ecosystem
The species occurs in stabilised coastal dunes, short grassland and shallow soils over rocks, within vegetation including Albany Thicket and related grassland and savanna habitats. Biodiversity Advisor
Species-Specific Habitat Adaptation
Its low, partly subterranean body and spreading branches are suited to exposed, dry habitats where remaining close to the ground provides a distinctive growth strategy.
Cultivation Note
General Euphorbia cultivation practices belong on the Euphorbia Genus Page.
For this species, the principal cultivation feature is its ability to develop a broad Medusa-like crown from a relatively small caudex, making it particularly suitable for specimen cultivation in a shallow, well-drained container. The RHS lists it for full sun to partial shade and describes it as a tender succulent perennial. RHS
Green Desert Observation
This specimen is notable for its vigorous radial branching and fresh green growth at the tips, creating a particularly clear example of the Medusa-head architecture.
Life’s Whisper
“From one quiet center, many paths reach for the light.”
References
For the complete botanical references, scientific literature, and online resources used by the Green Desert Botanical Library, please visit the References page available from the Main Menu.
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