Devil's-backbone

Names and Synonyms

Common Names

• Devil's-backbone
• Lady’s Slipper
• Milkbush
• Slipperplant
• Japanese-poinsettia
• redbird-cactus
• redbird-flower
• slipper-flower
• Christmas Candle
• Devil's Backbone
• Jacob's Ladder
• Japanese Poinsettia
• Redbird Cactus
• Zig-Zag Plant

Scientific Names

Accepted name

Synonyms

• Tithymalus tithymaloides
• Pedilanthus tithymaloides

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta within the class Equisetopsida. Following its subclass Magnoliidae, it is organized under the order Malpighiales and the family Euphorbiaceae. Finally, it is categorized under the genus Euphorbia.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a wide geographical distribution across several distinct tropical regions. In West Tropical Africa, its presence can be identified within the borders of Gambia. Moving toward the continent's center, it is also found in Northeast Tropical Africa, specifically in Chad. Its range extends into South Tropical Africa, where it inhabits both Malawi and Mozambique. Finally, the species reaches the Western Indian Ocean, occurring in the remote Chagos Archipelago.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Euphorbia tithymaloides is characterized by its ability to inhabit diverse environments, primarily flourishing within forest habitats. This species demonstrates a broad vertical distribution across various landscapes, occupying an elevational range that begins at sea level (0 m AMSL) and extends up to a maximum altitude of 1000 m AMSL.

Elevational range max:

1000 m AMSL

Elevational range min:

0 m AMSL

Habitat :

forest

Life history

The life history of Euphorbia tithymaloides is characterized by a perennial lifecycle, allowing the plant to persist through multiple growing seasons. In terms of its structural growth habit and life form, the species exhibits a dual classification depending on environmental conditions and developmental stages, functioning as both a nanophanerophyte and a chamaephyte. This indicates that its reproductive shoots are typically held close to the ground or slightly above it, enabling it to adapt to various ecological niches while maintaining a long-term presence in its habitat.

Life form :

nanophanerophyte

Life form :

chamaephyte

Lifecycle :

perennial

Morphology

The morphology of Euphorbia tithymaloides is characterized by a woody, shrub-like growth form that functions as a self-supporting plant rather than a climber, liana, or vine. It is a terrestrial species that grows independently, lacking any parasitic or epiphytic tendencies. In terms of stature, the plant exhibits a variable height, typically ranging from a minimum of 0.2 m to a maximum of 1.5 m, with an average height of approximately 0.55 m.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

shrub

Parasite :

independent

Plant height max:

1.5 m

Plant height mean:

0.55 m

Plant height min:

0.2 m

Woodiness :

woody

Physiology

The physiology of Euphorbia tithymaloides is characterized by a specialized succulent morphology and a specific metabolic framework designed for efficient resource management. The plant exhibits pronounced succulence, a physiological adaptation that allows for the significant storage of water within its tissues to withstand fluctuating environmental conditions. Its photosynthetic processes are governed by the C3 pathway, which dictates its carbon fixation mechanics. The leaf architecture provides a specific surface area for gas exchange and light absorption, with leaf lengths typically measuring a mean of 5.75 cm, ranging from a minimum of 3.5 cm to a maximum of 8 cm. Complementing this, the leaf width displays a mean of 3.75 cm, with dimensions spanning from a minimum of 2.5 cm to a maximum of 5 cm, contributing to the overall physiological efficiency of the organism.

Leaf length max:

8 cm

Leaf length mean:

5.75 cm

Leaf length min:

3.5 cm

Leaf width max:

5 cm

Leaf width mean:

3.75 cm

Leaf width min:

2.5 cm

Photosynthetic pathway :

C3

Succulence :

yes

Reproduction

Reproduction in Euphorbia tithymaloides is achieved through both sexual and asexual mechanisms, facilitating its spread across diverse habitats. Sexual reproduction occurs via specialized inflorescences known as cyathia, which produce pollen and nectar to attract pollinators, leading to the development of small capsules containing seeds. The dispersal of these seeds is characterized by a multifaceted approach involving multiple syndromes; the plant exhibits anemochorous, anthropochorous, autochorous, endozoochorous, epizoochorous, hydrochorous, myrmecocorous, and unspecialized zoochorous dispersal traits. This diverse range of dispersal syndromes—spanning from wind and water movement to animal ingestion, external transport, and even human-mediated movement—ensures that the species can effectively colonize new territories and maintain genetic diversity. Additionally, the plant possesses a high capacity for vegetative propagation, allowing it to spread rapidly through stem fragmentation and adventitious root formation.

Dispersal syndrome :

anthropochorous

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Euphorbia tithymaloides has 1 reported plant parts identified across 2 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include leaf.

Leaf

1. Fitoterapia
2. PloS one

Chemicals

Euphorbia tithymaloides has 5 reported phytochemicals identified across 2 scientific publications and several other databases. The most consistently reported chemicals include Flavonoids, Saponins, Terpenoids, luteolin, phenol.

Flavonoids

1. ACS omega

Saponins

1. ACS omega

Terpenoids

1. ACS omega

luteolin

1. PloS one

phenol

1. ACS omega

Activities

Euphorbia tithymaloides has 9 reported activities identified across 2 scientific publications and several other databases. The most consistently reported activities include Antibacterial, Antibiotic, Antifungal, Antioxidant, Antiplasmodial.

Antibacterial

1. Fitoterapia

Antibiotic

1. Life sciences

Antifungal

1. Fitoterapia

Antioxidant

1. Life sciences

Antiplasmodial

1. Journal of natural products

Antiseptic

1. Life sciences

Antiviral

1. Life sciences

Cytotoxic

1. RSC advances

Emetic

1. Life sciences

Preparations