Image: Wikimedia Commons (See link for license)
Poinsettia
Euphorbia pulcherrima
ショウジョウボク
An evergreen shrub in the spurge family, commonly known as poinsettia. Native to Mexico. In November–December the bracts at the top of the stem turn bright red, pink, or creamy white. Loved worldwide as the 'Christmas flower'. Contains toxic white latex in its sap.
Identification Points
- ✓Red bracts at the shoot tip (not true flowers)
- ✓Ovate leaves with lobed margins
- ✓White latex exudes from cuts
Habitat
Cultivated (potted, greenhouses)
Season
November to December (colored bracts)
Morphological TraitsAI-estimated, needs verification
Leaf arrangement
Alternate
Leaf type
Simple
Growth form
Tree
Evergreen/Deciduous
Evergreen
Flower color
Red
Habitat
Cultivated
Phylogenetic Positionトウダイグサ科 →
Phylogenetic Position
Angiosperms > Eudicots > Core eudicots > Malpighiales > Euphorbiaceae
Divergence Era
Late Cretaceous to Paleogene (about 90–80 million years ago)
Sources & References
📖Wikipedia 日本語版↗
🤖Claude AI生成（未確認）Wikipediaリードを根拠に生成。要確認。
AI-generated, needs verification