Euphorbia pulcherrima

Poinsettia – White

Taxonomy

• Kingdom: Plantae
• Clade: Angiosperms
• Clade: Eudicots
• Clade: Rosids
• Order: Malpighiales
• Family: Euphorbiaceae
• Genus: Euphorbia
• Species: Euphorbia pulcherrima

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Common Names by Region

• United States: White Poinsettia
• Mexico (Native): Flor de Nochebuena
• Europe: Christmas Flower
• Asia: Winter Rose

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Description

• Growth Habit: Shrubby perennial or small tree with upright growth, often cultivated as a compact decorative plant.
• Size: Typically 1-3 feet as an indoor plant; up to 10-15 feet in outdoor conditions in native regions.
• Leaves: Dark green, ovate leaves with smooth to slightly serrated margins; 3-6 inches long.
• Flowers: Inconspicuous yellow cyathia (flower structures) surrounded by large, showy white bracts that are often mistaken for petals.

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Known Range

• Native Range: Tropical dry forests of Mexico and Central America.
• Cultivated Range: Widely grown as an ornamental plant worldwide, particularly in temperate regions during winter.

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Care Requirements

• Light: Prefers bright, indirect sunlight; tolerates partial shade.
• Watering: Keep soil evenly moist but not waterlogged. Allow the top inch of soil to dry between watering.
• Soil: Well-draining, slightly acidic to neutral soil (pH 5.5-7.0).
• Humidity: Thrives in 50-70% relative humidity; avoid dry air.
• Temperature: 65-75°F (18-24°C); avoid drafts and temperature fluctuations.
• Propagation: Stem cuttings during spring or summer.
• Common Pests/Diseases: Vulnerable to whiteflies, mealybugs, spider mites, and fungal root rot if overwatered.

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Additional Notes

• Special Features: The white variety offers a neutral, elegant alternative to the traditional red poinsettia, making it popular for winter weddings and minimalist holiday decor.
• Maintenance Level: Moderate; requires attentive watering and consistent humidity for optimal growth.