Christmas star

Names and Synonyms

Common Names

• Christmas-flower
• Christmas-star
• Mexican flameleaf
• lobsterplant
• paintedleaf
• poinsettia

Scientific Names

Accepted name

Synonyms

• Poinsettia pulcherrima var. plena
• Poinsettia ignescens
• Poinsettia pulcherrima var. albida
• Euphorbia fastuosa
• Poinsettia pulcherrima
• Poinsettia pulcherrima var. roseocarminata
• Euphorbia pulcherrima f. lutea
• Euphorbia erithrophylla
• Pleuradena coccinea
• Poinsettia pulcherrima var. major
• Poinsettia pulcherrima var. rosea-carminata
• Poinsettia mirabilis
• Poinsettia variabilis
• Poinsettia pulcherrima var. plenissima

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta, falling under the class Equisetopsida and subclass Magnoliidae. It is further classified within the order Malpighiales and the family Euphorbiaceae. Ultimately, its taxonomic identity is defined by the genus Euphorbia.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a diverse geographical range that spans across several continents. In Southeastern Europe, its presence can be identified within the borders of Italy. Moving toward Northern Africa, it is found growing in Tunisia. Its distribution continues through West Tropical Africa, specifically in Gambia and Guinea. Finally, the species reaches West-Central Tropical Africa, encompassing the Gulf of Guinea Islands.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Euphorbia pulcherrimas is characterized by a broad adaptability to various topographical gradients, allowing it to thrive across a diverse range of altitudinal zones. This species exhibits a significant vertical distribution, occupying habitats that stretch from low-lying areas at an elevation of 125 m AMSL to high-altitude environments reaching up to a maximum of 3000 m AMSL. Such a wide elevational range suggests that the plant can tolerate varying thermal regimes and atmospheric pressures, facilitating its establishment in both subtropical lowland settings and more temperate, montane ecosystems. This ecological plasticity enables the species to navigate diverse microclimates, influencing its distribution patterns across different mountain ranges and regional landscapes.

Elevational range max:

3000 m AMSL

Elevational range min:

125 m AMSL

Life history

The life history of Euphorbia pulcherrimas is characterized by its status as a perennial plant, allowing it to persist through multiple growing seasons. Regarding its structural classification, it functions as a phanerophyte, maintaining its buds well above the ground, though it can also be categorized as a nanophanerophyte depending on specific growth conditions and environmental stressors. Its foliage exhibits a deciduous nature, shedding leaves as part of its seasonal cycle, which is often closely associated with its distinctive flowering patterns.

Deciduousness :

deciduous

Life form :

nanophanerophyte

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Euphorbia pulcherrima is characterized by its growth form as a woody shrub, exhibiting a self-supporting structure that does not require climbing mechanisms. As a terrestrial plant, it functions as an independent organism, neither acting as a parasite nor as an epiphyte. The plant reaches a height ranging from a minimum of 0.5 m to a maximum of 4 m. Its physical constitution is defined by its woody nature, providing the necessary stability for its upright, shrubby habit in its natural terrestrial habitat.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

shrub

Parasite :

independent

Plant height max:

4 m

Plant height min:

0.5 m

Woodiness :

woody

Physiology

The physiology of Euphorbia pulcherrimas is characterized by a C3 photosynthetic pathway, which dictates its carbon fixation processes and metabolic efficiency. The plant exhibits a non-succulent morphology, relying on its specialized leaf structures for resource management. The foliage is defined by a lanceolate leaf form, with dimensions that vary significantly depending on environmental conditions and maturity. Typically, the leaves maintain a mean length of 15.5 cm, though they can range from a minimum of 6 cm to a maximum length of 25 cm. Correspondingly, the leaf width shows notable variation, with a mean width of 7 cm, a minimum of 4 cm, and a maximum breadth reaching up to 10 cm.

Leaf form :

lanceolate

Leaf length max:

25 cm

Leaf length mean:

15.5 cm

Leaf length min:

6 cm

Leaf width max:

10 cm

Leaf width mean:

7 cm

Leaf width min:

4 cm

Photosynthetic pathway :

C3

Succulence :

no

Reproduction

The reproduction of Euphorbia pulcherrimae is characterized by a specific flowering cycle and specialized fruit morphology. The plant typically initiates its flowering period in October and concludes around February, though the timing can be variable throughout the months. The inflorescence is structured as a cyme, featuring flowers that display a distinct red color. Following pollination, the plant produces small fruits with very specific dimensions: the fruit length ranges from a minimum of 0.15 cm to a maximum of 0.2 cm, with a mean length of 0.175 cm. The fruit width remains consistent, measuring between a minimum of 0.15 cm and a maximum of 0.15 cm, resulting in a mean width of 0.15 cm. Regarding the movement of its offspring, the plant utilizes an anthropochorous dispersal syndrome, meaning its seeds are spread via human activity.

Dispersal syndrome :

anthropochorous

Flower colour :

red

Flowering time :

Oct

Flowering time :

Feb

Fruit length max:

0.2 cm

Fruit length mean:

0.175 cm

Fruit length min:

0.15 cm

Fruit width max:

0.15 cm

Inflorescence :

cyme

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Euphorbia pulcherrima has 30 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include 2-Methylanthraquinone, BETA-SITOSTEROL, Brein, CAMPESTEROL, Cyanidin 3-galactoside.

2-Methylanthraquinone

1. Dr. Duke

BETA-SITOSTEROL

1. Dr. Duke

Brein

1. Dr. Duke

CAMPESTEROL

1. Dr. Duke

Cyanidin 3-galactoside

1. Dr. Duke

Cyanidin 3-glucoside

1. Dr. Duke

Cyanidin 3-rutinoside

1. Dr. Duke

Cycloartenol

1. Dr. Duke

DECA-2,4,6-TRIENOIC ACID

1. Dr. Duke

Dihydrobrassicasterol

1. Dr. Duke

Activities

Euphorbia pulcherrima has 183 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Antidepressant, Antipyretic, 5-HT-Inhibitor, Aldehyde-Oxidase-Inhibitor, Aldose-Reductase-Inhibitor.

Antidepressant

1. Dr. Duke
2. Evidence-based complementary and alternative medicine : eCAM

Antipyretic

1. Dr. Duke
2. Evidence-based complementary and alternative medicine : eCAM

5-HT-Inhibitor

1. Dr. Duke

Aldehyde-Oxidase-Inhibitor

1. Dr. Duke

Aldose-Reductase-Inhibitor

1. Dr. Duke

Allelochemic

1. Dr. Duke

Allergenic

1. Dr. Duke

Analgesic

1. Dr. Duke

Androgenic

1. Dr. Duke

Angiogenic

1. Dr. Duke

Medicinal Uses

Euphorbia pulcherrima has 3 reported medicinal uses identified across 0 scientific publications and several other databases. The most consistently reported uses include antidepressant, antipyretic, skin diseases.

Most Reported Uses

Preparations